Weather modification is the act of intentionally manipulating or altering the
weather
Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy. On Earth, most weather phenomena occur in the lowest layer of the planet's atmosphere, the ...
. The most common form of weather modification is
cloud seeding
Cloud seeding is a type of weather modification that aims to change the amount or type of precipitation that falls from clouds by dispersing substances into the air that serve as cloud condensation or ice nuclei, which alter the microphysical p ...
, which increases rain or snow, usually for the purpose of increasing the local
water supply
Water supply is the provision of water by public utilities, commercial organisations, community endeavors or by individuals, usually via a system of pumps and pipes. Public water supply systems are crucial to properly functioning societies. Thes ...
.
Weather modification can also have the goal of preventing damaging weather, such as
hail
Hail is a form of solid precipitation. It is distinct from ice pellets (American English "sleet"), though the two are often confused. It consists of balls or irregular lumps of ice, each of which is called a hailstone. Ice pellets generally fal ...
or
hurricanes
A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depend ...
, from occurring; or of provoking damaging weather against the enemy, as a tactic of military or
economic warfare
Economic warfare or economic war is an economic strategy utilized by belligerent nations with the goal of weakening the economy of other states. This is primarily achieved by the use of economic blockades. Ravaging the crops of the enemy is a cl ...
like
Operation Popeye
Operation Sober Popeye (Project Controlled Weather Popeye / Motorpool / Intermediary-Compatriot) was a military cloud-seeding project carried out by the U.S. Air Force during the Vietnam War in 1967–1972. The highly classified program attempted ...
, where clouds were
seeded to prolong the monsoon in Vietnam. Weather modification in warfare has been banned by the
United Nations
The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and international security, security, develop friendly relations among nations, achieve international cooperation, and be ...
under the
Environmental Modification Convention
The Environmental Modification Convention (ENMOD), formally the Convention on the Prohibition of Military or Any Other Hostile Use of Environmental Modification Techniques is an international treaty prohibiting the military or other hostile use ...
.
History
A popular belief in Northern Europe that shooting prevents hail caused many agricultural towns to fire cannons without ammunition. Veterans of the
Seven Years' War
The Seven Years' War (1756–1763) was a global conflict that involved most of the European Great Powers, and was fought primarily in Europe, the Americas, and Asia-Pacific. Other concurrent conflicts include the French and Indian War (1754 ...
,
Napoleonic wars
The Napoleonic Wars (1803–1815) were a series of major global conflicts pitting the French Empire and its allies, led by Napoleon I, against a fluctuating array of European states formed into various coalitions. It produced a period of Fren ...
, and the
American Civil War
The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by states th ...
reported that rain fell after every large battle. After their stories were collected in ''War and Weather'', the
United States Department of War
The United States Department of War, also called the War Department (and occasionally War Office in the early years), was the United States Cabinet department originally responsible for the operation and maintenance of the United States Army, a ...
in the late 19th century purchased $9,000 of gunpowder and explosives to detonate them in Texas, in hopes of condensing
water vapor
(99.9839 °C)
, -
, Boiling point
,
, -
, specific gas constant
, 461.5 J/( kg·K)
, -
, Heat of vaporization
, 2.27 MJ/kg
, -
, Heat capacity
, 1.864 kJ/(kg·K)
Water vapor, water vapour or aqueous vapor is the gaseous pha ...
into
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 f ...
. The results of the test, supervised by
Robert Dyrenforth
Weather modification is the act of intentionally manipulating or altering the weather. The most common form of weather modification is cloud seeding, which increases rain or snow, usually for the purpose of increasing the local water supply. We ...
, were inconclusive.
Wilhelm Reich
Wilhelm Reich ( , ; 24 March 1897 – 3 November 1957) was an Austrian Doctor of Medicine, doctor of medicine and a psychoanalysis, psychoanalyst, along with being a member of the second generation of analysts after Sigmund Freud. The author ...
performed
cloudbusting
"Cloudbusting" is a song written, produced and performed by English singer Kate Bush. It was the second single released from her number-one album ''Hounds of Love'' (1985). "Cloudbusting" peaked at No. 20 on the UK Singles Chart.
Taking inspi ...
experiments in the 1950s, the results of which are controversial and was not widely accepted by mainstream science.
In November 1954 the Thailand Royal Rainmaking Project (Thai: โครงการฝนหลวง) was initiated by the King
Bhumibol Adulyadej
Bhumibol Adulyadej ( th, ภูมิพลอดุลยเดช; ; ; (Sanskrit: ''bhūmi·bala atulya·teja'' - "might of the land, unparalleled brilliance"); 5 December 192713 October 2016), conferred with the title King Bhumibol the Great ...
. He discovered that many areas faced the problem of drought. Over 82 percent of Thai agricultural land relied on rainfall. Thai farmers were not able to grow crops for lack of water. The royal rainmaking project debuted on 20 July 1969 at his behest, when the first rainmaking attempt was made at Khao Yai National Park. Dry ice flakes were scattered over clouds. Reportedly, some rainfall resulted. In 1971, the government established the Artificial Rainmaking Research and Development Project within the Thai Ministry of Agriculture and Cooperatives
In January 2011, several newspapers and magazines, including the UK's ''Sunday Times'' and ''Arabian Business'', reported that scientists backed by the government of
Abu Dhabi
Abu Dhabi (, ; ar, أَبُو ظَبْيٍ ' ) is the capital and second-most populous city (after Dubai) of the United Arab Emirates. It is also the capital of the Emirate of Abu Dhabi and the centre of the Abu Dhabi Metropolitan Area.
...
, the capital of the
United Arab Emirates
The United Arab Emirates (UAE; ar, اَلْإِمَارَات الْعَرَبِيَة الْمُتَحِدَة ), or simply the Emirates ( ar, الِْإمَارَات ), is a country in Western Asia (The Middle East). It is located at th ...
, had created over 50 artificial rainstorms between July and August 2010 near
Al Ain
Al Ain ( ar, ٱلْعَيْن, , ) is a city in the western side of Tawam (region), Tuwwam region and the seat of the administrative division of its namesake, Al-Ain Region, Abu Dhabi, Al Ain in the Emirate of Abu Dhabi, United Arab Emirates. ...
, a city which lies close to the country's border with
Oman
Oman ( ; ar, عُمَان ' ), officially the Sultanate of Oman ( ar, سلْطنةُ عُمان ), is an Arabian country located in southwestern Asia. It is situated on the southeastern coast of the Arabian Peninsula, and spans the mouth of t ...
and is the second-largest city in the
Abu Dhabi Emirate
The Emirate of Abu Dhabi (, , or ; ar, إِمَارَةْ أَبُوظَبِي , ) is one of seven emirates that constitute the United Arab Emirates (UAE). It is by far the largest emirate, accounting for 87% of the nation's total land area o ...
. The artificial rainstorms were said to have sometimes caused hail, gales and thunderstorms, baffling local residents.
The Chinese have told the world they can control the weather and that the Olympic Games there would not be hampered by bad weather conditions. They also have a government office called: Beijing Weather Modification Office, which is under the national weather control office.
Cloud seeding
Cloud seeding is a common technique to enhance precipitation. Cloud seeding entails spraying small particles, such as
silver iodide
Silver iodide is an inorganic compound with the formula Ag I. The compound is a bright yellow solid, but samples almost always contain impurities of metallic silver that give a gray coloration. The silver contamination arises because AgI is hig ...
, onto clouds to attempt to affect their development, usually with the goal of increasing precipitation. Cloud seeding only works to the extent that there is already water vapor present in the air. Critics generally contend that claimed successes occur in conditions which were going to lead to rain anyway. It is used in a variety of drought-prone countries, including 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 states, a federal district, five major unincorporated territorie ...
,
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
,
India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
, and
Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
. In
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
there is a perceived dependency upon it in dry regions, and there is a strong suspicion it is used to "wash the air" in dry and heavily polluted places, such as Beijing. In mountainous areas of the United States such as the Rocky Mountains and Sierra Nevada, cloud seeding has been employed since the 1950s.
Project Cirrus was an attempt by
General Electric
General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable energ ...
to modify the weather which ran from 1947-1952. During that time, under the supervision of the
United States Air Force
The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal ...
, attempts were made to create snowstorms and seed hurricanes by using
silver iodide
Silver iodide is an inorganic compound with the formula Ag I. The compound is a bright yellow solid, but samples almost always contain impurities of metallic silver that give a gray coloration. The silver contamination arises because AgI is hig ...
. While General Electric reported positive results, they also acknowledged that their experiments were controversial.
The
United Arab Emirates
The United Arab Emirates (UAE; ar, اَلْإِمَارَات الْعَرَبِيَة الْمُتَحِدَة ), or simply the Emirates ( ar, الِْإمَارَات ), is a country in Western Asia (The Middle East). It is located at th ...
has been cloud seeding since the 2000s and aims to increase rainfall by 15-30% per year. The materials used are potassium chloride, sodium chloride, magnesium, and other materials.
Consequences
Societal
Not having adequate systems to handle weather modification may have disastrous consequences. "In the city of Jeddah in Western Saudi Arabia was damaged by floods in 2009 that reportedly killed more than 100 people; igniting questions of why the country doesn’t have effective drainage systems in place."
Human
The U.S. National Library of Medicine notes that the silver iodide has no known “ill effects” on people, although people’s “hands may have remained yellowed for weeks” after being exposed to it.
Storm prevention
Project Stormfury
Project Stormfury was an attempt to weaken tropical cyclones by flying aircraft into them and seeding with silver iodide. The project was run by the United States Government from 1962 to 1983. The hypothesis was that the silver iodide would cause ...
was an attempt to weaken
tropical cyclone
A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depend ...
s by flying aircraft into storms and seeding the
eyewall
The eye is a region of mostly calm weather at the center of tropical cyclones. The eye of a storm is a roughly circular area, typically in diameter. It is surrounded by the ''eyewall'', a ring of towering thunderstorms where the most severe weat ...
with silver iodide. The project was run by the
United States Government
The federal government of the United States (U.S. federal government or U.S. government) is the national government of the United States, a federal republic located primarily in North America, composed of 50 states, a city within a fede ...
from 1962 to 1983. A similar project using soot was run in 1958, with inconclusive results.
Various methods have been proposed to reduce the harmful effects of hurricanes. Moshe Alamaro of the
Massachusetts Institute of Technology
The Massachusetts Institute of Technology (MIT) is a private land-grant research university in Cambridge, Massachusetts. Established in 1861, MIT has played a key role in the development of modern technology and science, and is one of the ...
proposed using barges with upward-pointing jet engines to trigger smaller storms to disrupt the progress of an incoming hurricane; critics doubt the jets would be powerful enough to make any noticeable difference.
Alexandre Chorin of the
University of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant u ...
, proposed dropping large amounts of environmentally friendly oils on the sea surface to prevent droplet formation.
Experiments by Kerry Emanuel of MIT in 2002 suggested that hurricane-force winds would disrupt the oil slick, making it ineffective.
Other scientists disputed the factual basis of the theoretical mechanism assumed by this approach.
The Florida company Dyn-O-Mat and its CEO, Peter Cordani, proposed the use of a patented product it developed, called Dyn-O-Gel, to reduce the strength of hurricanes. The substance is a
polymer
A polymer (; Greek '' poly-'', "many" + ''-mer'', "part")
is a substance or material consisting of very large molecules called macromolecules, composed of many repeating subunits. Due to their broad spectrum of properties, both synthetic a ...
in powder form (a
polyacrylic acid
Poly(acrylic acid) (PAA; trade name Carbomer) is a polymer with the formula (CH2-CHCO2H)n. It is a derivative of acrylic acid (CH2=CHCO2H). In addition to the homopolymers, a variety of copolymers and crosslinked polymers, and partially deproto ...
derivative) which reportedly has the ability to absorb 1,500 times its own weight in water. The theory is that the polymer is dropped into clouds to remove their moisture and force the storm to use more energy to move the heavier water drops, thus helping to dissipate the storm. When the gel reaches the ocean surface, it is reportedly dissolved. Peter Cordani teamed up with Mark Daniels and Victor Miller, the owners of a government contracting aviation firm
AeroGroup
AeroGroup is an American private commercial company that offers military aircraft training. It was the first private commercial company to operate F-16 aircraft and train F-16 pilots and maintenance crew. AeroGroup performed F-16 training servic ...
which operated ex-military aircraft commercially. Using a high altitude B-57 Bomber,
AeroGroup
AeroGroup is an American private commercial company that offers military aircraft training. It was the first private commercial company to operate F-16 aircraft and train F-16 pilots and maintenance crew. AeroGroup performed F-16 training servic ...
tested the substance dropping 9,000 pounds from the
B-57 aircraft's large bomb bay dispersing it into a large thunderstorm cell just off the east coast of Florida. The tests were documented on film and made international news showing the storms were successfully removed on monitored Doppler radar. In 2003, the program was shut down because of political pressure through
NOAA
The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...
. Numerical simulations performed by
NOAA
The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...
showed however that it would not be a practical solution for large systems like a tropical cyclone.
Hail cannon
A hail cannon is a shock wave generator claimed to disrupt the formation of hailstones in the atmosphere.
These devices frequently engender conflict between farmers and neighbors when used, because they are repeatedly fired every 1 to 10 secon ...
s have been used by some farmers since the 19th century in an attempt to ward off
hail
Hail is a form of solid precipitation. It is distinct from ice pellets (American English "sleet"), though the two are often confused. It consists of balls or irregular lumps of ice, each of which is called a hailstone. Ice pellets generally fal ...
, but there is no reliable scientific evidence to confirm their effectiveness. Another new anti-hurricane technology is a method for the reduction of tropical cyclones' destructive force – pumping sea water into and diffusing it in the wind at the bottom of such tropical cyclone in its eye wall.
Hurricane modification
NOAA published a page addressing various ideas in regards to tropical cyclone manipulation.
In 2007, "How to stop a hurricane" explored various ideas such as:
* Using lasers to discharge
lightning
Lightning is a naturally occurring electrostatic discharge during which two electric charge, electrically charged regions, both in the atmosphere or with one on the land, ground, temporarily neutralize themselves, causing the instantaneous ...
in storms which are likely to become hurricanes
* Pouring
liquid nitrogen
Liquid nitrogen—LN2—is nitrogen in a liquid state at low temperature. Liquid nitrogen has a boiling point of about . It is produced industrially by fractional distillation of liquid air. It is a colorless, low viscosity liquid that is wide ...
onto the sea to deprive the hurricane of
heat energy
In thermodynamics, heat is defined as the form of energy crossing the boundary of a thermodynamic system by virtue of a temperature difference across the boundary. A thermodynamic system does not ''contain'' heat. Nevertheless, the term is al ...
.
* Creating
soot
Soot ( ) is a mass of impure carbon particles resulting from the incomplete combustion of hydrocarbons. It is more properly restricted to the product of the gas-phase combustion process but is commonly extended to include the residual pyrolysed ...
to absorb sunlight and change
air temperature
Atmospheric temperature is a measure of temperature at different levels of the Earth's atmosphere. It is governed by many factors, including insolation, incoming solar radiation, humidity and altitude. When discussing surface air temperature, the ...
and create
convection currents
Convection is single or multiphase fluid flow that occurs spontaneously due to the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity (see buoyancy). When the cause of the convec ...
in the outer wall.
Researchers from NOAA's hurricane research division addressed hurricane control based ideas.
Later ideas (2017) include laser inversion along the same lines as laser cooling (normally used at cryogenic temperatures) but intended to cool the top 1mm of water. If enough power were to be used then it may be enough, combined with computer modeling, to form an interference pattern able to inhibit a hurricane or significantly reduce its strength by depriving it of heat energy.
Other proposals for hurricane modification include the construction of a large array of offshore wind turbines along the USA’s east coast. Such turbines would have the dual purpose of generating plentiful energy whilst also reducing the power of oncoming hurricanes before they make landfall.
In the military
Operation Popeye
Operation Sober Popeye (Project Controlled Weather Popeye / Motorpool / Intermediary-Compatriot) was a military cloud-seeding project carried out by the U.S. Air Force during the Vietnam War in 1967–1972. The highly classified program attempted ...
was a highly classified operation run by the US military in 1967-1972. The purpose was to prolong monsoon in Southeast Asia. The overwhelming precipitation successfully disrupted the tactical logistics of the Vietnamese army. Operation Popeye is believed as the first successful practice of weather modification technology in warfare. After it was unveiled, weather modification in warfare was banned by the
Environmental Modification Convention
The Environmental Modification Convention (ENMOD), formally the Convention on the Prohibition of Military or Any Other Hostile Use of Environmental Modification Techniques is an international treaty prohibiting the military or other hostile use ...
(ENMOD).
In "Benign Weather Modification" published March 1997, Air Force Major Barry B. Coble superficially documents the existence of weather modification science where he traces the developments that have occurred, notably, in the hands of the Pentagon and CIA's staunchest ideological enemies.
* The first scientifically controlled and monitored effort generally recognized by the meteorological community as constituting weather modification occurred in 1948. When Dr. Irving Langmuir first experimented with artificially seeding clouds to produce rain, his experiments showed positive results – sparking tremendous interest in the field nearly overnight.
* Many countries throughout the world practice weather modification. The Russians have long been interested in using weather modification as a way to control hail.
In the 1990s a directive from the chief of staff of the Air Force Ronald R. Fogleman was issued to examine the concepts, capabilities, and technologies the United States would require to remain the dominant air and space force in the future.
In law
US and Canada agreement
In 1975, the US and Canada entered into an agreement under the auspices of the United Nations for the exchange of information on weather modification activity.
1977 UN Environmental Modification Convention
Weather modification, particularly hostile
weather warfare
Weather warfare is the use of weather modification techniques such as cloud seeding for military purposes.
Background
Use
Prior to the Environmental Modification Convention signed in Geneva in 1977, the United States used weather warfare ...
, was addressed by the "United Nations General Assembly Resolution 31/72, TIAS 9614 Convention on the Prohibition of Military or Any Other Hostile Use of Environmental Modification Techniques." The Convention was signed in
Geneva
Geneva ( ; french: Genève ) frp, Genèva ; german: link=no, Genf ; it, Ginevra ; rm, Genevra is the List of cities in Switzerland, second-most populous city in Switzerland (after Zürich) and the most populous city of Romandy, the French-speaki ...
on May 18, 1977; entered into force on October 5, 1978; ratified by U.S. President Jimmy Carter on December 13, 1979; and the U.S. ratification deposited at New York January 17, 1980.
US National Oceanic and Atmospheric Administration
In the US, the
National Oceanic and Atmospheric Administration
The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...
keeps records of weather modification projects on behalf of the Secretary of Commerce, under authority of Public Law 92-205, 15 USC § 330B, enacted in 1971.
Proposed US legislation
2005 U.S. Senate Bill 517 and U.S. House Bill 2995
U.S. Senate Bill 517 and U.S. House Bill 2995 were two bills proposed in 2005 that would have expanded experimental weather modification, to establish a
Weather Modification Operations and Research Board
Weather modification is the act of intentionally manipulating or altering the weather. The most common form of weather modification is cloud seeding, which increases rain or snow, usually for the purpose of increasing the local water supply. W ...
, and implemented a national weather modification policy. Neither were made into law.
2007 U.S. Senate Bill 1807 & U.S. House Bill 3445
Senate Bill 1807 and House Bill 3445, identical bills introduced July 17, 2007, proposed to establish a Weather Mitigation Advisory and Research Board to fund weather modification research
In religion and mythology
Magical and religious practices to control the weather are attested in a variety of cultures. In
ancient India
According to consensus in modern genetics, anatomically modern humans first arrived on the Indian subcontinent from Africa between 73,000 and 55,000 years ago. Quote: "Y-Chromosome and Mt-DNA data support the colonization of South Asia by m ...
it is said that yajna or vedic rituals of chanting mantras and offering were performed by
rishis
''Rishi'' () is a term for an accomplished and enlightened person. They find mentions in various Vedic texts. Rishis are believed to have composed hymns of the Vedas. The Post-Vedic tradition of Hinduism regards the rishis as "great yogis" or ...
to bring sudden bursts of rain fall in rain starved regions. Some
Indigenous Americans, like some Europeans, had rituals which they believed could induce rain. The
Finnish people
Finns or Finnish people ( fi, suomalaiset, ) are a Baltic Finnic ethnic group native to Finland.
Finns are traditionally divided into smaller regional groups that span several countries adjacent to Finland, both those who are native to these ...
, on the other hand, were believed by others to be able to control weather. As a result,
Viking
Vikings ; non, víkingr is the modern name given to seafaring people originally from Scandinavia (present-day Denmark, Norway and Sweden),
who from the late 8th to the late 11th centuries raided, pirated, traded and se ...
s refused to take Finns on their oceangoing raids. Remnants of this superstition lasted into the twentieth century, with some ship crews being reluctant to accept Finnish sailors.
The early modern era saw people observe that during battles the firing of
cannon
A cannon is a large- caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder ...
s and other firearms often initiated precipitation.
In
Greek mythology
A major branch of classical mythology, Greek mythology is the body of myths originally told by the Ancient Greece, ancient Greeks, and a genre of Ancient Greek folklore. These stories concern the Cosmogony, origin and Cosmology#Metaphysical co ...
,
Iphigenia
In Greek mythology, Iphigenia (; grc, Ἰφιγένεια, , ) was a daughter of King Agamemnon and Queen Clytemnestra, and thus a princess of Mycenae.
In the story, Agamemnon offends the goddess Artemis on his way to the Trojan War by hunting ...
was offered as a
human sacrifice
Human sacrifice is the act of killing one or more humans as part of a ritual, which is usually intended to please or appease gods, a human ruler, an authoritative/priestly figure or spirits of dead ancestors or as a retainer sacrifice, wherein ...
to appease the wrath of the goddess
Artemis
In ancient Greek mythology and religion, Artemis (; grc-gre, Ἄρτεμις) is the goddess of the hunt, the wilderness, wild animals, nature, vegetation, childbirth, care of children, and chastity. She was heavily identified wit ...
, who had becalmed the
Achaean fleet at
Aulis at the beginning of the
Trojan War
In Greek mythology, the Trojan War was waged against the city of Troy by the Achaeans (Greeks) after Paris of Troy took Helen from her husband Menelaus, king of Sparta. The war is one of the most important events in Greek mythology and has ...
. In
Homer
Homer (; grc, Ὅμηρος , ''Hómēros'') (born ) was a Greek poet who is credited as the author of the ''Iliad'' and the ''Odyssey'', two epic poems that are foundational works of ancient Greek literature. Homer is considered one of the ...
's ''
Odyssey
The ''Odyssey'' (; grc, Ὀδύσσεια, Odýsseia, ) is one of two major Ancient Greek literature, ancient Greek Epic poetry, epic poems attributed to Homer. It is one of the oldest extant works of literature still widely read by moder ...
'',
Aeolus
In Greek mythology, Aeolus or Aiolos (; grc, Αἴολος , ) is a name shared by three mythical characters. These three personages are often difficult to tell apart, and even the ancient mythographers appear to have been perplexed about which A ...
, keeper of the winds, bestowed
Odysseus
Odysseus ( ; grc-gre, Ὀδυσσεύς, Ὀδυσεύς, OdysseúsOdyseús, ), also known by the Latin variant Ulysses ( , ; lat, UlyssesUlixes), is a legendary Greek king of Ithaca and the hero of Homer's epic poem the ''Odyssey''. Odysse ...
and his crew with a gift of the four winds in a bag. However, the sailors opened the bag while Odysseus slept, looking for booty (money), and as a result were blown off course by the resulting gale. In ancient Rome, the ''
lapis manalis
A ''lapis manalis'' was either of two sacred stones used in the Roman religion. One covered a gate to Hades, abode of the dead; Sextus Pompeius Festus called it ''ostium Orci'', "the gate of Orcus". The other was used to make rain; this one may h ...
'' was a sacred stone kept outside the
walls of Rome
Defensive walls are a feature of ancient Roman architecture. The Romans generally fortified cities, rather than building stand-alone fortresses, but there are some fortified camps, such as the Saxon Shore forts like Porchester Castle in England. ...
in a temple of
Mars
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury (planet), Mercury. In the English language, Mars is named for the Mars (mythology), Roman god of war. Mars is a terr ...
. When Rome suffered from drought, the stone was dragged into the city.
The
Berwick witches of Scotland were found guilty of using
black magic
Black magic, also known as dark magic, has traditionally referred to the use of supernatural powers or magic for evil and selfish purposes, specifically the seven magical arts prohibited by canon law, as expounded by Johannes Hartlieb in 145 ...
to summon storms to murder
King James VI of Scotland
James VI and I (James Charles Stuart; 19 June 1566 – 27 March 1625) was King of Scotland as James VI from 24 July 1567 and King of England and Ireland as James I from the union of the Scottish and English crowns on 24 March 1603 until hi ...
by seeking to sink the ship upon which he travelled. Scandinavian witches allegedly claimed to sell the wind in bags or magically confined into wooden staves; they sold the bags to seamen who could release them when becalmed. In various towns of
Navarre
Navarre (; es, Navarra ; eu, Nafarroa ), officially the Chartered Community of Navarre ( es, Comunidad Foral de Navarra, links=no ; eu, Nafarroako Foru Komunitatea, links=no ), is a foral autonomous community and province in northern Spain, ...
, prayers petitioned
Saint Peter
Saint Peter; he, שמעון בר יונה, Šimʿōn bar Yōnāh; ar, سِمعَان بُطرُس, translit=Simʿa̅n Buṭrus; grc-gre, Πέτρος, Petros; cop, Ⲡⲉⲧⲣⲟⲥ, Petros; lat, Petrus; ar, شمعون الصفـا, Sham'un ...
to grant rain in time of drought. If the rain was not forthcoming, the statue of St Peter was removed from the church and tossed into a river.
In the
Hebrew Bible
The Hebrew Bible or Tanakh (;["Tanach"](_blank)
''Random House Webster's Unabridged Dictionary''. Hebrew: ''Tān ...
, it is recorded that Elijah in the way of judgement, told King Ahab that neither dew nor rain would fall until Elijah called for it. It is further recorded that the ensuing drought lasted for a period of 3.5 years at which time Elijah called the rains to come again and the land was restored. The
New Testament
The New Testament grc, Ἡ Καινὴ Διαθήκη, transl. ; la, Novum Testamentum. (NT) is the second division of the Christian biblical canon. It discusses the teachings and person of Jesus, as well as events in first-century Christ ...
records Jesus Christ controlling a storm by speaking to it.
In
Islam
Islam (; ar, ۘالِإسلَام, , ) is an Abrahamic religions, Abrahamic Monotheism#Islam, monotheistic religion centred primarily around the Quran, a religious text considered by Muslims to be the direct word of God in Islam, God (or ...
, Salat Al-Istisqa’ (Prayer for Rain) is taken as recourse when seeking rain from God during times of drought.
Conspiracy theories
Weather modification, along with
climate engineering
Climate engineering (also called geoengineering) is a term used for both carbon dioxide removal (CDR) and solar radiation management (SRM), also called solar geoengineering, when applied at a planetary scale.IPCC (2022Chapter 1: Introduction and F ...
, is a recurring theme in
conspiracy theories
A conspiracy theory is an explanation for an event or situation that invokes a conspiracy by sinister and powerful groups, often political in motivation, when other explanations are more probable.Additional sources:
*
*
*
* The term has a nega ...
. The
chemtrail conspiracy theory supposes that jet
contrails
Contrails (; short for "condensation trails") or vapor trails are line-shaped clouds produced by aircraft engine exhaust or changes in air pressure, typically at aircraft cruising altitudes several miles above the Earth's surface. Contrails ar ...
are chemically altered to modify the weather and other phenomena. Other theories attempt to implicate scientific infrastructure such as the
High-frequency Active Auroral Research Program
The High-frequency Active Auroral Research Program (HAARP) was initiated as an ionosphere, ionospheric research program jointly funded by the United States Air Force, U.S. Air Force, the United States Navy, U.S. Navy, the University of Alaska ...
.
In literature
Frank Herbert
Franklin Patrick Herbert Jr. (October 8, 1920February 11, 1986) was an American science fiction author best known for the 1965 novel '' Dune'' and its five sequels. Though he became famous for his novels, he also wrote short stories and worked a ...
's
Dune
A dune is a landform composed of wind- or water-driven sand. It typically takes the form of a mound, ridge, or hill. An area with dunes is called a dune system or a dune complex. A large dune complex is called a dune field, while broad, f ...
series features weather control technology, mainly in the planets of
Arrakis
Arrakis ()—informally known as Dune and later called Rakis—is a fictional desert planet featured in the Dune (franchise), ''Dune'' series of novels by Frank Herbert. Herbert's first novel in the series, 1965's ''Dune (novel), Dune'', is consi ...
, where the technology is used to assure for privacy from observation and in order to hide from the
Imperium
In ancient Rome, ''imperium'' was a form of authority held by a citizen to control a military or governmental entity. It is distinct from ''auctoritas'' and ''potestas'', different and generally inferior types of power in the Roman Republic an ...
their true population and their plans to
terraform the planet, and in
Chapterhouse, where the
Bene Gesserit
The Bene Gesserit () refers to a key social, religious, and political force in Frank Herbert's fictional ''Dune'' universe. The group is an exclusive sisterhood whose members train their bodies and minds through years of physical and mental ...
intend to turn the planet into a
desert
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About on ...
.
The ability to manipulate the weather has become a common
superpower
A superpower is a state with a dominant position characterized by its extensive ability to exert influence or project power on a global scale. This is done through the combined means of economic, military, technological, political and cultural s ...
in
superhero fiction
Superhero fiction is a genre of speculative fiction examining the adventure fiction, adventures, personalities and ethics of costumed crime fighters known as superheroes, who often possess Superpower (ability), superhuman powers and battle simil ...
. A notable example is the
Marvel Comics
Marvel Comics is an American comic book publishing, publisher and the flagship property of Marvel Entertainment, a divsion of The Walt Disney Company since September 1, 2009. Evolving from Timely Comics in 1939, ''Magazine Management/Atlas Co ...
character
Storm
A storm is any disturbed state of the natural environment or the atmosphere
An atmosphere () is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body. A planet retains an atmos ...
.
In the children's book
Cloudy with a Chance of Meatballs
''Cloudy with a Chance of Meatballs'' is a children's book written by Judi Barrett and illustrated by Ron Barrett. It was first published in 1978 by Atheneum Books, followed by a 1982 trade paperback edition from sister company Aladdin Paperb ...
, the fictional town of Chewandswallow has weather that rains down food instead of actual rain or snow until it got too extreme and made the civilians move to a different town. This was adapted into a
movie
A film also called a movie, motion picture, moving picture, picture, photoplay or (slang) flick is a work of visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, feelings, beauty, or atmosphere ...
where Flint Lockwood, the town's outcast and scientist, has created a machine that converts water from the clouds into food.
See also
*
Alberta Hail Project The Alberta Hail Project was a research project sponsored by the Alberta Research Council and Environment Canada to study hailstorm physics and dynamics in order to design and test means for suppressing hail. It ran from 1956 until 1985. The main in ...
*
Beijing Weather Modification Office
The Beijing Weather Modification Office is a unit of the Beijing Meteorological Bureau tasked with weather control in Beijing, and its surrounding areas, including parts of Hebei and Inner Mongolia.
The Beijing Weather Modification Office form a ...
*
Chemtrail conspiracy theory
The chemtrail conspiracy theory is the erroneous belief that long-lasting condensation trails are "chemtrails" consisting of chemical or biological agents left in the sky by high-flying aircraft, sprayed for nefarious purposes undisclosed to t ...
*
Climate engineering
Climate engineering (also called geoengineering) is a term used for both carbon dioxide removal (CDR) and solar radiation management (SRM), also called solar geoengineering, when applied at a planetary scale.IPCC (2022Chapter 1: Introduction and F ...
*
Cloud seeding
Cloud seeding is a type of weather modification that aims to change the amount or type of precipitation that falls from clouds by dispersing substances into the air that serve as cloud condensation or ice nuclei, which alter the microphysical p ...
*
Environmental Modification Convention
The Environmental Modification Convention (ENMOD), formally the Convention on the Prohibition of Military or Any Other Hostile Use of Environmental Modification Techniques is an international treaty prohibiting the military or other hostile use ...
(ENMOD)
*
Extreme weather
Extreme weather or extreme climate events includes unexpected, unusual, severe, or unseasonal weather; weather at the extremes of the historical distribution—the range that has been seen in the past. Often, extreme events are based on a locat ...
*
Fog Investigation and Dispersal Operation
Fog Investigation and Dispersal Operation (FIDO) (which was sometimes referred to as "Fog Intense Dispersal Operation" or "Fog, Intense Dispersal Of") was a system used for dispersing fog and pea soup fog (dense smog) from an airfield so that a ...
(FIDO)
*
Global warming
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 E ...
*
Land surface effects on climate Land surface effects on climate are wide-ranging and vary by region. Deforestation and exploitation of natural landscapes play a significant role. Some of these environmental changes are similar to those caused by the effects of global warming.
D ...
*
Operation Popeye
Operation Sober Popeye (Project Controlled Weather Popeye / Motorpool / Intermediary-Compatriot) was a military cloud-seeding project carried out by the U.S. Air Force during the Vietnam War in 1967–1972. The highly classified program attempted ...
*
Project Cumulus
Project Cumulus was a 1950s UK government initiative to investigate weather manipulation, in particular through cloud seeding experiments. Known jokingly internally as ''Operation Witch Doctor'', the project was operational between 1949 and 1952 ...
*
Project Stormfury
Project Stormfury was an attempt to weaken tropical cyclones by flying aircraft into them and seeding with silver iodide. The project was run by the United States Government from 1962 to 1983. The hypothesis was that the silver iodide would cause ...
*
Water scarcity
Water scarcity (closely related to water stress or water crisis) is the lack of fresh water Water resources, resources to meet the standard water demand. There are two types of water scarcity: physical or economic water scarcity. Physical water ...
*
Weather forecasting
Weather forecasting is the application of science and technology forecasting, to predict the conditions of the Earth's atmosphere, atmosphere for a given location and time. People have attempted to predict the weather informally for millennia a ...
*
Weather modification in North America Weather modification in North America has been taking place since at least the 1950s. Programs related to this field have been authorized by the governments of both the United States and Canada.
Alberta Hail Project
The Alberta Hail Project was ...
References
Further reading
Weather as a Force Multiplier:, Owning the Weather in 2025 – August 1996 – Department of DefenseOperational Defenses through Weather Control in 2030Fixing the Sky: The Checkered History of Weather and Climate Control
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