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A low-carbon economy (LCE) or decarbonised economy is an
economy An economy is an area of the production, distribution and trade, as well as consumption of goods and services. In general, it is defined as a social domain that emphasize the practices, discourses, and material expressions associated with t ...
based on energy sources that produce low levels of greenhouse gas (GHG) emissions. GHG emissions due to human activity are the dominant cause of observed
climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to ...
since the mid-20th century. Continued emission of greenhouse gases will cause long-lasting changes around the world, increasing the likelihood of severe, pervasive, and irreversible effects for people and ecosystems. Shifting to a low-carbon economy on a global scale could bring substantial benefits both for developed and
developing countries A developing country is a sovereign state with a lesser developed Industrial sector, industrial base and a lower Human Development Index (HDI) relative to other countries. However, this definition is not universally agreed upon. There is al ...
. Many countries around the world are designing and implementing low-emission development strategies (LEDS). These strategies seek to achieve social, economic, and environmental development goals while reducing long-term greenhouse gas emissions and increasing resilience to the effects of climate change. Globally implemented low-carbon economies are therefore proposed as a precursor to the more advanced, zero-carbon economy. The GeGaLo index of geopolitical gains and losses assesses how the geopolitical position of 156 countries may change if the world fully transitions to renewable energy resources. Former fossil fuel exporters are expected to lose power, while the positions of former fossil fuel importers and countries rich in renewable energy resources is expected to strengthen.


Rationale and aims

Nations may seek to become low-carbon or decarbonised economies as a part of a national
climate change mitigation Climate change mitigation is action to limit climate change by reducing emissions of greenhouse gases or removing those gases from the atmosphere. The recent rise in global average temperature is mostly caused by emissions from fossil fuels bu ...
strategy. A comprehensive strategy to mitigate
climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to ...
is through
carbon neutrality Carbon neutrality is a state of net-zero carbon dioxide emissions. This can be achieved by balancing emissions of carbon dioxide with its removal (often through carbon offsetting) or by eliminating emissions from society (the transition to the ...
. The aim of a LCE is to integrate all aspects of itself from its manufacturing, agriculture, transportation, and power generation, etc. around technologies that produce energy and materials with little GHG emission, and, thus, around populations, buildings, machines, and devices that use those energies and materials efficiently, and, dispose of or recycle its wastes so as to have a minimal output of GHGs. Furthermore, it has been proposed that to make the transition to an LCE economically viable we would have to attribute a cost (per unit output) to GHGs through means such as
emissions trading Emissions trading is a market-based approach to controlling pollution by providing economic incentives for reducing the emissions of pollutants. The concept is also known as cap and trade (CAT) or emissions trading scheme (ETS). Carbon emission ...
and/or a
carbon tax A carbon tax is a tax levied on the carbon emissions required to produce goods and services. Carbon taxes are intended to make visible the "hidden" social costs of carbon emissions, which are otherwise felt only in indirect ways like more s ...
. Some nations are presently low carbon: societies that are not heavily industrialized or populated. In order to avoid climate change on a global level, all nations considered carbon-intensive societies and societies that are heavily populated might have to become zero-carbon societies and economies. EU emission trading system allows companies to buy international carbon credits, thus the companies can channel clean technologies to promote other countries to adopt low-carbon developments.


Benefits

Low-carbon economies present multiple benefits to ecosystem resilience, trade, employment, health, energy security, and industrial competitiveness.


Ecosystem resilience

Low emission development strategies for the land use sector can prioritize the protection of carbon-rich ecosystems to not only reduce emissions, but also to protect
biodiversity Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic ('' genetic variability''), species ('' species diversity''), and ecosystem ('' ecosystem diversity' ...
and safeguard local livelihoods to reduce rural poverty - all of which can lead to more climate resilient systems, according to a report by the Low Emission Development Strategies Global Partnership (LEDS GP). REDD+ and blue carbon initiatives are among the measures available to conserve, sustainably manage, and restore these carbon rich ecosystems, which are crucial for natural carbon storage and sequestration, and for building climate resilient communities.


Economic benefits


Job creation

Transitioning to a low-carbon, environmentally and socially sustainable economies can become a strong driver of job creation, job upgrading, social justice, and poverty eradication if properly managed with the full engagement of governments, workers, and employers’ organizations. Estimates from the
International Labour Organization The International Labour Organization (ILO) is a United Nations agency whose mandate is to advance social and economic justice by setting international labour standards. Founded in October 1919 under the League of Nations, it is the first and o ...
’s Global Economic Linkages model suggest that unmitigated climate change, with associated negative impacts on enterprises and workers, will have negative effects on output in many industries, with drops in output of 2.4% by 2030 and 7.2% by 2050. Transitioning to a low-carbon economy will cause shifts in the volume, composition, and quality of employment across sectors and will affect the level and distribution of income. Research indicates that eight sectors employing around 1.5 billion workers, approximately half the global workforce, will undergo major changes: agriculture, forestry, fishing, energy, resource intensive manufacturing, recycling, buildings, and transport. During the green transition, workers in carbon-intensive industries are more likely to lose their jobs. The transition to a carbon-neutral economy will put more jobs at danger in regions with higher percentages of employment in carbon-intensive industries. Employment opportunities by the green transition are associated with the use of renewable energy sources or building activity for infrastructure improvements and renovations.


Business competitiveness

Low emission industrial development and resource efficiency can offer many opportunities to increase the competitiveness of economies and companies. According to the Low Emission Development Strategies Global Partnership (LEDS GP), there is often a clear business case for switching to lower emission technologies, with payback periods ranging largely from 0.5–5 years, leveraging financial investment.


Improved trade policy

Trade and trade policies can contribute to low-carbon economies by enabling more efficient use of resources and international exchange of climate-friendly goods and services. Removing tariffs and nontariff barriers to trade in clean energy and energy efficiency technologies are one such measure. In a sector where finished products consist of many components that cross borders numerous times - a typical
wind turbine A wind turbine is a device that converts the kinetic energy of wind into electrical energy. Hundreds of thousands of large turbines, in installations known as wind farms, now generate over 650 gigawatts of power, with 60 GW added each year. W ...
, for example, contains up to 8,000 components - even small tariff cuts would reduce costs. This would make the technologies more affordable and competitive in the global market, particularly when combined with a phasing out of fossil fuel subsidies.


Energy policy


Renewable energy and energy efficiency

] Recent advances in technology and policy will allow renewable energy and energy efficiency to play major roles in displacing fossil fuels, meeting global energy demand while reducing carbon dioxide emissions. Renewable energy technologies are being rapidly commercialized and, in conjunction with efficiency gains, can achieve far greater emissions reductions than either could independently.Janet L. Sawin and William R. Moomaw
Renewable Revolution: Low-Carbon Energy by 2030
Worldwatch Report, 2009.
Renewable energy is
energy In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of hea ...
that comes from
natural resource Natural resources are resources that are drawn from nature and used with few modifications. This includes the sources of valued characteristics such as commercial and industrial use, aesthetic value, scientific interest and cultural value. ...
s such as sunlight,
wind Wind is the natural movement of air or other gases relative to a planet's surface. Winds occur on a range of scales, from thunderstorm flows lasting tens of minutes, to local breezes generated by heating of land surfaces and lasting a few ...
,
rain Rain is water droplets that have condensed from atmospheric water vapor and then fall under gravity. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth. It provides water ...
,
tides Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tide tabl ...
, and
geothermal heat Geothermal heating is the direct use of geothermal energy for some heating applications. Humans have taken advantage of geothermal heat this way since the Paleolithic era. Approximately seventy countries made direct use of a total of 270 PJ of ...
, which are renewable (naturally replenished). In 2015, about 19% of global final energy consumption came from renewables. REN21 (2017)
Renewables 2017 Global Status Report
During the five years from the end of 2004 through 2009, worldwide renewable energy capacity grew at rates of 10–60 percent annually for many technologies. For wind power and many other renewable technologies, growth accelerated in 2009 relative to the previous four years. More wind power capacity was added during 2009 than any other renewable technology. However, grid-connected
photovoltaics Photovoltaics (PV) is the conversion of light into electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon studied in physics, photochemistry, and electrochemistry. The photovoltaic effect is commercial ...
increased the fastest of all renewables technologies, with a 60 percent annual average growth rate for the five-year period. REN21 (2010)
Renewables 2010 Global Status Report
p. 15.
Energy for power, heat, cooling, and mobility is the key ingredient for development and growth, with energy security a prerequisite economic growth, making it arguably the most important driver for energy policy. Scaling up renewable energy as part of a low emission development strategy can diversify a country's energy mixes and reduces dependence on imports. In the process of decarbonizing heat and transport through
electrification Electrification is the process of powering by electricity and, in many contexts, the introduction of such power by changing over from an earlier power source. The broad meaning of the term, such as in the history of technology, economic histo ...
, potential changes to electricity peak demand need to be anticipated whilst switching to alternative technologies such as heat pumps for electric vehicles. Installing local renewable capacities can also lower geopolitical risks and exposure to fuel price volatility, and improve the balance of trade for importing countries (noting that only a handful of countries export oil and gas). Renewable energy offers lower financial and economic risk for businesses through a more stable and predictable cost base for energy supply. Energy efficiency gains in recent decades have been significant, but there is still much more that can be achieved. With a concerted effort and strong policies in place, future energy efficiency improvements are likely to be very large. Heat is one of many forms of "energy wastage" that could be captured to significantly increase useful energy without burning more fossil fuels. Significant volumes of decarbonized electrical energy will be needed to decarbonize the global economy. Demand is generated by conventional electrical energy-based applications, the electrification of energy-intensive sectors, transportation and heating, and indirect electrification using hydrogen and synthetic fuels.


Sustainable biofuels

Biofuels Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels, such as oil. According to the United States Energy Information Administration (E ...
, in the form of liquid fuels derived from plant materials, are entering the market, driven by factors such as oil price spikes and the need for increased
energy security Energy security is the association between national security and the availability of natural resources for energy consumption. Access to (relatively) cheap energy has become essential to the functioning of modern economies. However, the uneven ...
. However, many of the biofuels that are currently being supplied have been criticised for their adverse impacts on the
natural environment The natural environment or natural world encompasses all living and non-living things occurring naturally, meaning in this case not artificial. The term is most often applied to the Earth or some parts of Earth. This environment encompasses ...
,
food security Food security speaks to the availability of food in a country (or geography) and the ability of individuals within that country (geography) to access, afford, and source adequate foodstuffs. According to the United Nations' Committee on World F ...
, and
land use Land use involves the management and modification of natural environment or wilderness into built environment such as settlements and semi-natural habitats such as arable fields, pastures, and managed woods. Land use by humans has a long his ...
. The challenge is to support biofuel development, including the development of new cellulosic technologies, with responsible policies and economic instruments to help ensure that biofuel commercialization is
sustainable Specific definitions of sustainability are difficult to agree on and have varied in the literature and over time. The concept of sustainability can be used to guide decisions at the global, national, and individual levels (e.g. sustainable livin ...
. Responsible commercialization of biofuels represents an opportunity to enhance sustainable economic prospects in Africa, Latin America and Asia.
The Royal Society The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, r ...
(January 2008). ''Sustainable biofuels: prospects and challenges'', , p. 61.
Gordon Quaiattini
Biofuels are part of the solution
''Canada.com'', April 25, 2008. Retrieved December 23, 2009.
Biofuels have a limited ability to replace fossil fuels and should not be regarded as a ‘silver bullet’ to deal with transport emissions. However, they offer the prospect of increased market competition and oil price moderation. A healthy supply of
alternative energy Renewable energy is energy that is collected from renewable resources that are naturally replenished on a human timescale. It includes sources such as sunlight, wind, the movement of water, and geothermal heat. Although most renewable energy ...
sources will help to combat gasoline price spikes and reduce dependency on fossil fuels, especially in the transport sector. Using transportation fuels more efficiently is also an integral part of a
sustainable transport Sustainable transport refers to ways of transportation that are sustainable in terms of their social and environmental impacts. Components for evaluating sustainability include the particular vehicles used for road, water or air transport; th ...
strategy.


Nuclear power

Nuclear power Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced ...
has been offered as the primary means to achieve a LCE. In terms of large
industrialized Industrialisation ( alternatively spelled industrialization) is the period of social and economic change that transforms a human group from an agrarian society into an industrial society. This involves an extensive re-organisation of an econo ...
nations, mainland France, due primarily to 75% of its electricity being produced by nuclear power, has the lowest carbon dioxide production per unit of GDP in the world and it is the largest exporter of electricity in the world, earning it approximately €3 billion annually in sales. Concern is often expressed with the matter of spent nuclear fuel storage and security; although the physical issues are not large, the political difficulties are significant. The liquid fluoride thorium reactor (LFTR) has been suggested as a solution to the concerns posed by conventional nuclear. France reprocesses their spent nuclear fuel at the
La Hague site The La Hague site is a nuclear fuel reprocessing plant at La Hague on the Cotentin Peninsula in northern France, with the Manche storage centre bordering on it. Operated by Orano, formerly AREVA, and prior to that COGEMA (''Compagnie général ...
since 1976 and has also treated spent nuclear fuel from France, Japan, Germany, Belgium, Switzerland, Italy, Spain, and the Netherlands. Some researchers have determined that achieving substantial decarbonization and combating climate change would be much more difficult without increasing nuclear power. Nuclear power is a reliable form of energy that is available 24/7, relatively safe, and can be expanded on a large scale. Nuclear power plants can replace fossil fuel-based power plants — shifting to a low carbon economy. As of 2021, the expansion of nuclear energy as a method of achieving a low-carbon economy has varying degrees of support. Agencies and organizations that believe decarbonization is not possible without some nuclear power expansion include the
United Nations Economic Commission for Europe The United Nations Economic Commission for Europe (ECE or UNECE) is one of the five regional commissions under the jurisdiction of the United Nations Economic and Social Council. It was established in order to promote economic cooperation and i ...
, the
International Energy Agency The International Energy Agency (IEA) is a Paris-based autonomous Intergovernmental organization, intergovernmental organisation, established in 1974, that provides policy recommendations, analysis and data on the entire global energy sector, wit ...
(IEA), the
International Atomic Energy Agency The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was established in 1 ...
, and the Energy Impact Center (EIC). Both IEA and EIC believe that widespread decarbonization must occur by 2040 in order mitigate the adverse effects of climate change and that nuclear power must play a role. The latter organization suggests that net-negative carbon emissions are possible using nuclear power to fuel
carbon capture Carbon capture may refer to: * Carbon capture and utilization, where the captured carbon dioxide is used * Carbon sequestration, where the captured carbon dioxide is stored ** Carbon capture and storage, referring to carbon sequestration from point ...
technology.


Smart grid

One proposal from Karlsruhe University developed as a virtual power station is the use of solar and wind energy for base load with hydro and biogas for make up or peak load. Hydro and biogas are used as grid energy storage. This requires the development of a smart intelligent grid hopefully including local power networks than use energy near the site of production, thereby reducing the existing 5% grid loss.


Decarbonisation technologies

There are five technologies commonly identified in decarbonisation: # Electrifying heat as furnaces are powered by electricity rather than burning fuels. Green energy must still be used. # The use of hydrogen as a furnace steam, a chemical feedstock, or a reactant in chemical processes. # The use of biomass as a source of energy or feedstock. In other words, replacing coal with bio coal or gas with bio-gas. One example is charcoal, which is made by converting wood into coal and has a CO2 footprint of zero. # Carbon capture and storage. This is where greenhouse gases are isolated from other natural gases, compressed, and injected into the earth to avoid being emitted into the atmosphere. # Carbon capture and usage. The aim of this method is to turn industrial gases into something valuable, such as ethanol or raw materials for the chemical industry.


Decarbonisation plans that get to zero CO2 emissions

A comprehensive decarbonisation plan describes how to generate enough green energy to replace coal, oil, and natural gas; and takes into consideration factors such as increasing GDP, increasing standard of living, and increasing efficiencies. Each year the world consumes 583 exajoules (EJ) of heat energy. This corresponds to 56,000 TWh of electricity when heat is converted to electricity via a 35% efficient turbine. To decarbonise, the world needs to generate this energy without emitting CO2. To get a sense of how large this is, one can look at how many Hoover Dams, London Arrays and nuclear reactors corresponds to this amount of energy: * 22,600 London Arrays, a wind farm with 175 large windmills * 13,500 Hoover Dams, a large hydroelectric dam in Nevada (based on average production between 1999 and 2008) * 21-times more than the world's current installed base of 400 GWe of
nuclear power Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced ...
Below are example global decarbonization plans: * Chapter 11 of '' How to Avoid a Climate Disaster'', by Bill Gates * Power Electronics
Plan To Get to Zero CO2 EmissionsA Global Decarbonization Plan
by the Manhattan 2 Project Below are example plans that decarbonize the United States: *Th
Net-Zero America Project
by Princeton University
Getting To Zero
by the
Center for Climate and Energy Solutions The Center for Climate and Energy Solutions (C2ES) is an environmental nonprofit organization based in Arlington, Virginia. Launched in 2011, C2ES is the successor to the Pew Center on Global Climate Change. C2ES works closely with policymakers an ...

America's Zero Carbon Action Plan
by the Sustainable Development Solutions Network *"Energy Decarb" scenario within DOE'
2021 Solar Futures Study
Tools that create decarbonization plans are in various stages of development:
C-Roads
Climate Policy Simulator * Power Electronics
Develop Your Own Decarbonization Plan


Carbon-neutral hydrocarbons


Carbon capture and storage


Combined heat and power

Combined Heat and Power (CHP) is a technology which by allowing the more efficient use of fuel will at least reduce carbon emissions; should the fuel be
biomass Biomass is plant-based material used as a fuel for heat or electricity production. It can be in the form of wood, wood residues, energy crops, agricultural residues, and waste from industry, farms, and households. Some people use the terms biom ...
or
biogas Biogas is a mixture of gases, primarily consisting of methane, carbon dioxide and hydrogen sulphide, produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste and food waste. I ...
or hydrogen used as an energy store then in principle it can be a zero carbon option. CHP can also be used with a nuclear reactor as the energy source; there are examples of such installations in the far North of the Russian Federation. By 2050, the energy requirement for transportation might be satisfied by hydrogen and synthetic fuels between 20% and 30%.


Decarbonisation activity by sector


Primary sector


Agriculture

Most of the agricultural facilities in the developed world are mechanized due to rural electrification. Rural electrification has produced significant productivity gains, but it also uses a lot of energy. For this and other reasons (such as transport costs) in a low-carbon society, rural areas would need available supplies of renewably produced electricity. Irrigation can be one of the main components of an agricultural facility's energy consumption. In parts of California, it can be up to 90%. In the low carbon economy, irrigation equipment will be maintained and continuously updated and farms will use less irrigation water. Livestock operations can also use a lot of energy depending on how they are run. Feedlots use animal feed made from corn, soybeans, and other crops. Energy must be expended to produce these crops, process, and transport them. Free-range animals find their own vegetation to feed on. The farmer may expend energy to take care of that vegetation, but not nearly as much as the farmer growing cereal and oil-seed crops. Many livestock operations currently use a lot of energy to water their livestock. In the low-carbon economy, such operations will use more water conservation methods such as rainwater collection, water cisterns, etc., and they will also pump/distribute that water with on-site renewable energy sources (most likely wind and solar). Due to rural electrification, most agricultural facilities in the developed world use a lot of electricity. In a low-carbon economy, farms will be run and equipped to allow for greater energy efficiency. Changes in the dairy industry include heat recovery, solar hearing, and use of biodigesters:New Zealand Energy Intensive Business Initiative, Replacing livestock with plant-based alternatives is another way of reducing our carbon emissions. The carbon footprint of livestock is large - it provides just 18% of total calories but takes up 83% of farmland.


Forestry

Protecting forests provides integrated benefits to all, ranging from increased food production, safeguarded local livelihoods, protected
biodiversity Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic ('' genetic variability''), species ('' species diversity''), and ecosystem ('' ecosystem diversity' ...
and
ecosystems An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the syst ...
provided by forests, and reduced rural poverty. Adopting low emission strategies for both agricultural and forest production also mitigates some of the effects of
climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to ...
. In the low-carbon economy, forestry operations will be focused on low-impact practices and regrowth. Forest managers will make sure that they do not disturb soil-based carbon reserves too much. Specialized tree farms will be the main source of material for many products. Quick maturing tree varieties will be grown on short rotations in order to maximize output.


Mining

Flaring and venting of
natural gas Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Low levels of trace gases like carbon ...
in oil wells is a significant source of
greenhouse gas emissions Greenhouse gas emissions from human activities strengthen the greenhouse effect, contributing to climate change. Most is carbon dioxide from burning fossil fuels: coal, oil, and natural gas. The largest emitters include coal in China and ...
. Its contribution to greenhouse gases has declined by three-quarters in absolute terms since a peak in the 1970s of approximately 110 million metric tons/year, and in 2004 accounted for about 1/2 of one percent of all anthropogenic
carbon dioxide Carbon dioxide ( chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is t ...
emissions. The
World Bank The World Bank is an international financial institution that provides loans and grants to the governments of low- and middle-income countries for the purpose of pursuing capital projects. The World Bank is the collective name for the Inte ...
estimates that 134 billion cubic meters of natural gas are flared or vented annually (2010 datum), an amount equivalent to the combined annual gas consumption of
Germany Germany, officially the Federal Republic of Germany (FRG),, is a country in Central Europe. It is the most populous member state of the European Union. Germany lies between the Baltic and North Sea to the north and the Alps to the sou ...
and
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan ar ...
or enough to supply the entire world with gas for 16 days. This flaring is highly concentrated: 10 countries account for 70% of emissions, and twenty for 85%.


Secondary sector


Basic metals processing

*high efficiency electric motors *induction furnaces * heat recovery


Nonmetallic product processing

*variable speed drives * injection molding - replace hydraulic with electric servo motors *
glass melting furnace A glass melting furnace is designed to melt raw materials into glass. Depending on the intended use, there are various designs of glass melting furnaces available. They use different power sources. These sources are mainly fossil fueled or by f ...
- heating with green generated electric power, bio fuels, hydrogen


Wood processing

*high efficiency motors *high efficiency fans *dehumidifier driers


Paper and pulp making

*variable speed drives *high efficiency motors


Food processing

*high efficiency boilers *heat recovery e.g. refrigeration *solar hot water for pre-heating * bio fuels e.g. tallow, wood


Tertiary sector


Building and Construction

In 2018, building construction and operations accounted for 39% of global greenhouse gas emissions. The construction industry has seen marked advances in building performance and energy efficiency over recent decades, but there continues to be a large need for additional improvement in order to decarbonize this sector. International and government organizations have taken actions to promote the decarbonization of buildings, including the United Nations Framework Convention on Climate Change (UNFCCC) signed in 1992, the
Kyoto Protocol The Kyoto Protocol was an international treaty which extended the 1992 United Nations Framework Convention on Climate Change (UNFCCC) that commits state parties to reduce greenhouse gas emissions, based on the scientific consensus that (par ...
signed in 1997, and many countries' Nationally Determined Contributions (NDC) of the Paris Climate Agreement which was signed in 2016. The largest contributor to building sector emissions (49% of total) is the production of electricity for use in buildings. To decarbonize the building sector, the production of electrical energy will need to reduce its dependence on fossil fuels such as
coal Coal is a combustible black or brownish-black sedimentary rock, formed as stratum, rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen ...
and
natural gas Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Low levels of trace gases like carbon ...
, and instead shift to carbon-free alternatives like
solar Solar may refer to: Astronomy * Of or relating to the Sun ** Solar telescope, a special purpose telescope used to observe the Sun ** A device that utilizes solar energy (e.g. "solar panels") ** Solar calendar, a calendar whose dates indicate t ...
,
wind Wind is the natural movement of air or other gases relative to a planet's surface. Winds occur on a range of scales, from thunderstorm flows lasting tens of minutes, to local breezes generated by heating of land surfaces and lasting a few ...
, and
nuclear Nuclear may refer to: Physics Relating to the nucleus of the atom: *Nuclear engineering *Nuclear physics *Nuclear power *Nuclear reactor *Nuclear weapon *Nuclear medicine *Radiation therapy *Nuclear warfare Mathematics *Nuclear space * Nuclear ...
. Currently many countries are heavily dependent on fossil fuels for electricity generation. In 2018, 61% of US electricity generation was produced by fossil fuel power plants (23% by coal and 38% by natural gas). Of global building sector GHG emissions, 28% are produced during the manufacturing process of building materials such as steel,
cement A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel (aggregate) together. Cement m ...
(a key component of
concrete Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most ...
), and glass. The conventional process inherently related to the production of steel and cement results in large amounts of CO2 emitted. For example, the production of steel in 2018 was responsible for 7 to 9% of the global CO2 emissions. However, these industries lend themselves very well for carbon capture and storage and carbon capture and utilization technology as the CO2 is available in large concentration in an exhaust gas, which is considered a so-called point source. GHG emissions which are produced during the mining, processing, manufacturing, transportation and installation of building materials are referred to as the embodied carbon of a material. The embodied carbon of a construction project can be reduced by using low-carbon materials for building structures and finishes, reducing demolition, and reusing buildings and construction materials whenever possible. The remaining 23% of global building sector GHG emissions are produced directly on site during building operations. These emissions are produced by fossil fuels such as
natural gas Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Low levels of trace gases like carbon ...
which are burned on site to generate hot water, provide space heating, and supply cooking appliances. These pieces of equipment will need to be replaced by carbon-free alternatives such as heat pumps and induction cooktops to decarbonize the building sector.


Retail

Retail operations in the low-carbon economy will have several new features. One will be high-efficiency lighting such as compact fluorescent, halogen, and eventually LED light sources. Many retail stores will also feature roof-top solar panel arrays. These make sense because solar panels produce the most energy during the daytime and during the summer. These are the same times that electricity is the most expensive and also the same times that stores use the most electricity.


Transportation

Sustainable, low-carbon transport systems are based on minimizing travel and shifting to more environmentally (as well as socially and economically) sustainable mobility, improving transport technologies, fuels and institutions. Decarbonisation of mobility by means of: * More energy efficiency and alternative propulsion: ** Increased focus on fuel efficient vehicle shapes and configurations, with more
vehicle electrification An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion. It can be powered by a collector system, with electricity from extravehicular sources, or it can be powered autonomously by a battery (sometimes cha ...
, particularly through
battery electric vehicle A battery electric vehicle (BEV), pure electric vehicle, only-electric vehicle, fully electric vehicle or all-electric vehicle is a type of electric vehicle (EV) that exclusively uses chemical energy stored in rechargeable battery packs, wi ...
s (BEV) or all-electric vehicles ** More alternative and flex-fuel vehicles (based on local conditions and availability) ** Driver training for more
fuel efficiency Fuel efficiency is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical potential energy contained in a carrier (fuel) into kinetic energy or work. Overall fuel efficiency may vary per device, ...
. ** Low-carbon biofuels
cellulosic Cellulose is an organic compound with the formula , a polysaccharide consisting of a linear chain of several hundred to many thousands of β(1→4) linked D-glucose units. Cellulose is an important structural component of the primary cell wall ...
(
biodiesel Biodiesel is a form of diesel fuel derived from plants or animals and consisting of long-chain fatty acid esters. It is typically made by chemically reacting lipids such as animal fat ( tallow), soybean oil, or some other vegetable oil ...
,
bioethanol Ethanol (abbr. EtOH; also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic compound. It is an alcohol with the chemical formula . Its formula can be also written as or (an ethyl group linked to a h ...
,
biobutanol 220px, Butanol, a C-4 hydrocarbon is a promising bio-derived fuel, which shares many properties with gasoline. Butanol may be used as a fuel in an internal combustion engine. It is more similar to gasoline than it is to ethanol. A C4-hydrocarbon ...
) ** Petroleum fuel surcharges will be a more significant part of consumer costs. * Less international movement of physical objects, despite more overall trade (as measure by value of goods) * Greater use of marine and
electric rail transport Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as describe ...
, less use of air and truck transport. * Increased non-motorised transport (i.e. walking and cycling) and public transport usage, less reliance on private motor vehicles. * More pipeline capacity for common fluid commodities such as water, ethanol, butanol, natural gas, petroleum, and hydrogen (in addition to gasoline and diesel).
Sustainable transport Sustainable transport refers to ways of transportation that are sustainable in terms of their social and environmental impacts. Components for evaluating sustainability include the particular vehicles used for road, water or air transport; th ...
has many co-benefits that can accelerate local sustainable development. According to a series of reports by the Low Emission Development Strategies Global Partnership (LEDS GP), low carbon transport can help create jobs, improve commuter safety through investment in bicycle lanes and pedestrian pathways, make access to employment and social opportunities more affordable and efficient. It also offers a practical opportunity to save people's time and household income as well as government budgets, making investment in sustainable transport a 'win-win' opportunity.


Health services

There have been some moves to investigate the ways and extent to which health systems contribute to greenhouse gas emissions and how they may need to change to become part of a low-carbon world. The Sustainable Development Unit of the NHS in the UK is one of the first official bodies to have been set up in this area, whilst organisations such as the Campaign for Greener Healthcare are also producing influential changes at a clinical level. This work includes * Quantification of where the health services emissions stem from. * Information on the environmental impacts of alternative models of treatment and service provision Some of the suggested changes needed are: * Greater efficiency and lower ecological impact of energy, buildings, and procurement choices (e.g., in-patient meals, pharmaceuticals, and medical equipment). * A shift from focusing solely on cure to prevention, through the promotion of healthier, lower-carbon lifestyles, e.g. diets lower in red meat and dairy products, walking or cycling wherever possible, better town planning to encourage more outdoor lifestyles. * Improving public transport and liftsharing options for transport to and from hospitals and clinics.


Tourism

Low-carbon tourism includes travels with low energy consumption, and low CO2 and pollution emissions. Change of personal behavior to more low-carbon oriented activities is mostly influenced by both individual awareness and attitudes, as well as external social aspect, such as culture and environment. Studies indicate that educational level and occupation influence an individual perception of low-carbon tourism.


Actions taken by countries

A good overview of the history of international efforts towards a low-carbon economy, from its initial seed at the inaugural UN Conference on the Human Environment in Stockholm in 1972, has been given by David Runnals. On the international scene, the most prominent early step in the direction of a low-carbon economy was the signing of the
Kyoto Protocol The Kyoto Protocol was an international treaty which extended the 1992 United Nations Framework Convention on Climate Change (UNFCCC) that commits state parties to reduce greenhouse gas emissions, based on the scientific consensus that (par ...
, which came into force in 2005, under which most industrialized countries committed to reduce their carbon emissions. Europe is the leading geopolitical continent in defining and mobilising decarbonisation policies. For instance, the UITP - an organisation advocating sustainable mobility and
public transport Public transport (also known as public transportation, public transit, mass transit, or simply transit) is a system of transport for passengers by group travel systems available for use by the general public unlike private transport, typic ...
- has an EU office, but less well developed contacts with, for example, the US. The European Union Committee of the UITP wants to promote decarbonisation of urban mobility in Europe. However, the 2014 ''Global Green Economy Index™ (GGEI)'' ranks 60 nations on their green economic performance, finding that the Nordic countries and Switzerland have the best combined performance around climate change and green economy. In Europe, there are differences between regions on how the transition to a green economy functions. Many businesses in cohesion regions are now concerned that the shift to a low-carbon economy would affect their industry. In less developed and transition areas, more people tend to view the climate shift as a risk than an opportunity. Only in non-cohesion regions, a larger proportion of businesses see the change as overall advantageous.


China

In China, the city of Dongtan is to be built to produce zero net greenhouse gas emissions. The Chinese State Council announced in 2009 it aimed to cut China's carbon dioxide emissions per unit of GDP by 40%-45% in 2020 from 2005 levels. However carbon dioxide emissions were still increasing by 10% a year by 2013 and China was emitting more carbon dioxide than the next two biggest countries combined (U.S.A. and India). Total carbon dioxide emissions were projected to increase until 2030.


Costa Rica

Costa Rica sources much of its energy needs from renewables and is undertaking reforestation projects. In 2007, the Costa Rican government announced the commitment for Costa Rica to become the first carbon neutral country by 2021.


Iceland

Iceland began utilising renewable energy early in the 20th century and so since has been a low-carbon economy. However, since dramatic economic growth, Iceland's emissions have increased significantly per capita. As of 2009, Iceland energy is sourced from mostly
geothermal energy Geothermal energy is the thermal energy in the Earth's crust which originates from the formation of the planet and from radioactive decay of materials in currently uncertain but possibly roughly equal proportions. The high temperature and pre ...
and
hydropower Hydropower (from el, ὕδωρ, "water"), also known as water power, is the use of falling or fast-running water to produce electricity or to power machines. This is achieved by converting the gravitational potential or kinetic energy of ...
, renewable energy in Iceland and, since 1999, has provided over 70% of the nation's primary energy and 99.9% of Iceland's
electricity Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as describ ...
. As a result of this, Iceland's carbon emissions per capita are 62% lower than those of the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...
despite using more primary energy per capita, due to the fact that it is renewable and low-cost. Iceland seeks
carbon neutrality Carbon neutrality is a state of net-zero carbon dioxide emissions. This can be achieved by balancing emissions of carbon dioxide with its removal (often through carbon offsetting) or by eliminating emissions from society (the transition to the ...
and expects to use
100% renewable energy 100% renewable energy means getting all energy from renewable resources. The endeavor to use 100% renewable energy for electricity, heating, cooling and transport is motivated by climate change, pollution and other environmental issues ...
by 2050 by generating hydrogen fuel from renewable energy sources.


Peru

The Economic Commission for Latin America and the Caribbean (ECLAC) estimates that economic losses related to climate change for Peru could reach over 15% of national gross domestic product (GDP) by 2100. Being a large country with a long coastline, snow-capped mountains and sizeable forests, Peru's varying ecosystems are extremely vulnerable to climate change. Several mountain glaciers have already begun to retreat, leading to
water scarcity Water scarcity (closely related to water stress or water crisis) is the lack of fresh water resources to meet the standard water demand. There are two types of water scarcity: physical or economic water scarcity. Physical water scarcity is whe ...
in some areas. In the period between 1990 and 2015, Peru experienced a 99% increase in per capita carbon emissions from fossil fuel and cement production, marking one of the largest increases amongst South American countries. Peru brought in a National Strategy on Climate Change in 2003. It is a detailed accounting of 11 strategic focuses that prioritize scientific research, mitigation of climate change effects on the poor, and creating Clean Development Mechanism (CDM) mitigation and adaptation policies. In 2010, the Peruvian Ministry of Environment published a Plan of Action for Adaptation and Mitigation of Climate Change. The Plan categorises existing and future programmes into seven action groups, including: reporting mechanisms on GHG emissions, mitigation, adaptation, research and development of technology of systems, financing and management, and public education. It also contains detailed budget information and analysis relating to climate change. In 2014, Peru hosted the Twentieth Conference of the Parties of the United Nations Framework Convention on Climate Change (UNFCCC COP20) negotiations. At the same time, Peru enacted a new climate law which provides for the creation of a national greenhouse gas inventory system called INFOCARBONO. According to the Low Emission Development Strategies Global Partnership (LEDS GP), INFOCARBONO is a major transformation of the country's greenhouse gas management system. Previously, the system was under the sole control of the Peruvian Ministry of the Environment. The new framework makes each relevant ministry responsible for their own share of greenhouse gas management.


United Kingdom

In the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...
, the
Climate Change Act 2008 The Climate Change Act 2008 (c 27) is an Act of the Parliament of the United Kingdom. The Act makes it the duty of the Secretary of State to ensure that the net UK carbon account for all six Kyoto greenhouse gases for the year 2050 is at ...
outlining a framework for the transition to a low-carbon economy became law on November 26, 2008. It was the world's first long-term legislation to reduce carbon emissions. This act requires an 80% cut in the UK's
carbon emissions Greenhouse gas emissions from human activities strengthen the greenhouse effect, contributing to climate change. Most is carbon dioxide from burning fossil fuels: coal, oil, and natural gas. The largest emitters include coal in China and l ...
by 2050 (compared to 1990 levels), with an intermediate target of between 26% and 32% by 2020. Thus, the UK became the first country to set such a long-range and significant carbon reduction target into law. A meeting at the
Royal Society The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, r ...
on 17–18 November 2008 concluded that an integrated approach, making best use of all available technologies, is required to move toward a low-carbon future. It was suggested by participants that it would be possible to move to a low-carbon economy within a few decades, but that 'urgent and sustained action is needed on several fronts'. In June 2012, the UK coalition government announced the introduction of mandatory carbon reporting, requiring around 1,100 of the UK's largest listed companies to report their
greenhouse gas emissions Greenhouse gas emissions from human activities strengthen the greenhouse effect, contributing to climate change. Most is carbon dioxide from burning fossil fuels: coal, oil, and natural gas. The largest emitters include coal in China and ...
every year. Deputy Prime Minister
Nick Clegg Sir Nicholas William Peter Clegg (born 7 January 1967) is a British media executive and former Deputy Prime Minister of the United Kingdom who has been president for global affairs at Meta Platforms since 2022, having previously been vicepre ...
confirmed that emission reporting rules would come into effect from April 2013 in his piece for ''The Guardian''. In July 2014, the UK Energy Savings Opportunity Scheme (ESOS) came into force. This requires all large businesses in the UK to undertake mandatory assessments looking at energy use and energy efficiency opportunities at least once every four years. The low carbon economy has been described as a "UK success story", accounting for more than £120 billion in annual sales and employing almost 1 million people. A 2013 report suggests that over a third of the UK's economic growth in 2011/12 was likely to have come from green business. This data is complementary to the strong correlation between
GDP per capita Lists of countries by GDP per capita list the countries in the world by their gross domestic product (GDP) per capita. The lists may be based on nominal or purchasing power parity Purchasing power parity (PPP) is the measurement of prices i ...
and national rates of energy consumption.


See also

*
Carbon neutrality Carbon neutrality is a state of net-zero carbon dioxide emissions. This can be achieved by balancing emissions of carbon dioxide with its removal (often through carbon offsetting) or by eliminating emissions from society (the transition to the ...
* Carbon-neutral fuel * Fossil fuel phase-out *
Life-cycle greenhouse gas emissions of energy sources Greenhouse gas emissions are one of the environmental impacts of electricity generation. Measurement of life-cycle greenhouse gas emissions involves calculating the global-warming potential of energy sources through life-cycle assessment. These ...
* Vehicle emission standard *
Emissions trading Emissions trading is a market-based approach to controlling pollution by providing economic incentives for reducing the emissions of pollutants. The concept is also known as cap and trade (CAT) or emissions trading scheme (ETS). Carbon emission ...
* Environmental economics * Global Green Growth Institute * Green industrial policy * Low-energy house * Low-carbon diet * Low-carbon fuel standard *
Sustainable energy Energy is sustainable if it "meets the needs of the present without compromising the ability of future generations to meet their own needs". Most definitions of sustainable energy include considerations of environmental aspects such as green ...
*
World energy consumption World energy supply and consumption is global production and preparation of fuel, generation of electricity, energy transport, and energy consumption. It is a basic part of economic activity. It includes heat, but not energy from food. This ar ...


References


External links

* GA Mansoori, N Enayati, LB Agyarko (2016),
Energy: Sources, Utilization, Legislation, Sustainability, Illinois as Model State
', World Sci. Pub. Co., * British Petroleum
Gas and Power in a Low Carbon Economy
*
DTI DTI may refer to: Science and technology * Deep trench isolation; See Shallow trench isolation * Dial test indicator * Direct trader input, in the history of electronic data interchange * Diffusion tensor imaging, a structural medical imaging tech ...
UK
Creating a low carbon economyEurope eyes 'low-carbon economy'
MSNBC.com MSNBC (originally the Microsoft National Broadcasting Company) is an American news-based pay television cable channel. It is owned by NBCUniversala subsidiary of Comcast. Headquartered in New York City, it provides news coverage and politic ...

GGGI Global Green Growth InstituteGrant Thornton International Business Report Energy & Environment surveyGreen Growth Knowledge Platform websiteHydrogen EconomyNew "carbon revolution" urged to slow warmingResources on Low Carbon EconomySenate.gov: The “Low Carbon Economy Act” of 2007
an
Turning the right corner: ensuring development through a low-carbon transport sector
World Bank Group The World Bank Group (WBG) is a family of five international organizations that make leveraged loans to developing countries. It is the largest and best-known development bank in the world and an observer at the United Nations Development Gr ...
, May 2013.
Reducing carbon intensive transport through individual awareness
{{DEFAULTSORT:Low-Carbon Economy Economics and climate change Energy economics Sustainable technologies Alternative energy economy Renewable energy economy