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North Cascades National Park
North Cascades National Park is a List of national parks of the United States, national park of the United States in Washington (state), Washington. At more than , it is the largest of the three National Park Service units that comprise the North Cascades National Park Complex. North Cascades National Park consists of a northern and southern section, bisected by the Skagit River that flows through the reservoirs of Ross Lake National Recreation Area. Lake Chelan National Recreation Area lies on the southern border of the south unit of the park. In addition to the two National Recreation Area, national recreation areas, other protected lands including several United States National Forest, national forests and National Wilderness Preservation System, wilderness areas, as well as List of Canadian protected areas, Canadian provincial parks in British Columbia, nearly surround the park. North Cascades National Park features the rugged mountain peaks of the North Cascades, North Casc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whatcom County, Washington
Whatcom County (, ) is a County (United States), county located in the northwestern corner of the U.S. state of Washington (state), Washington, bordered by the Lower Mainland (the Metro Vancouver and Fraser Valley Regional Districts) of the Canadian province of British Columbia to the north, Okanogan County, Washington, Okanogan County to the east, Skagit County, Washington, Skagit County to the south, San Juan County, Washington, San Juan County across Rosario Strait to the southwest, and the Strait of Georgia to the west. Its county seat and largest population center is the coastal city of Bellingham, Washington, Bellingham. Whatcom County is coterminous with the Bellingham, WA Metropolitan Statistical Area. As of the 2020 United States census, 2020 census, the county's population was 226,847. The county was created from Island County, Washington, Island County by the Washington Territorial Legislature in March 1854. It originally included the territory of present-day San J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biodiversity
Biodiversity is the variability of life, life on Earth. It can be measured on various levels. There is for example genetic variability, species diversity, ecosystem diversity and Phylogenetics, phylogenetic diversity. Diversity is not distributed evenly on Earth. It is greater in the tropics as a result of the warm climate and high primary productivity in the region near the equator. Tropical forest ecosystems cover less than one-fifth of Earth's terrestrial area and contain about 50% of the world's species. There are latitudinal gradients in species diversity for both marine and terrestrial taxa. Since Abiogenesis, life began on Earth, six major mass extinctions and several minor events have led to large and sudden drops in biodiversity. The Phanerozoic aeon (the last 540 million years) marked a rapid growth in biodiversity via the Cambrian explosion. In this period, the majority of Multicellular organism, multicellular Phylum, phyla first appeared. The next 400 mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilderness
Wilderness or wildlands (usually in the plurale tantum, plural) are Earth, Earth's natural environments that have not been significantly modified by human impact on the environment, human activity, or any urbanization, nonurbanized land not under extensive agriculture, agricultural cultivation. The term has traditionally referred to terrestrial environments, though human impact on marine life, growing attention is being placed on marine ecosystem, marine wilderness. Recent maps of wilderness suggest it covers roughly one-quarter of Earth's terrestrial surface, but is being rapidly degraded by human activity. Even less wilderness remains in the ocean, with only 13.2% free from intense human activity. Some governments establish protection for wilderness areas by law to not only protected area, preserve what already exists, but also to promote and advance a natural expression and development. These can be set up in preserves, conservation preserves, national forests, national par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacial Retreat
The retreat of glaciers since 1850 is a well-documented effect of climate change. The retreat of mountain glaciers provides evidence for the rise in global temperatures since the late 19th century. Examples include mountain glaciers in western North America, Asia, the Alps in central Europe, and tropical and subtropical regions of South America and Africa. Since glacial mass is affected by long-term climatic changes, e.g. precipitation, mean temperature, and cloud cover, glacial mass changes are one of the most sensitive indicators of climate change. The retreat of glaciers is also a major reason for sea level rise. Excluding peripheral glaciers of ice sheets, the total cumulated global glacial losses over the 26 years from 1993 to 2018 were likely 5500 gigatons, or 210 gigatons per year.Fox-Kemper, B., H.T. Hewitt, C. Xiao, G. Aðalgeirsdóttir, S.S. Drijfhout, T.L. Edwards, N.R. Golledge, M. Hemer, R.E. Kopp, G. Krinner, A. Mix, D. Notz, S. Nowicki, I.S. Nurhati, L. Ruiz, J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climate Change
Present-day climate change includes both global warming—the ongoing increase in Global surface temperature, global average temperature—and its wider effects on Earth's climate system. Climate variability and change, Climate change in a broader sense also includes previous long-term changes to Earth's climate. The current rise in global temperatures is Scientific consensus on climate change, driven by human activities, especially fossil fuel burning since the Industrial Revolution. Fossil fuel use, Deforestation and climate change, deforestation, and some Greenhouse gas emissions from agriculture, agricultural and Environmental impact of concrete, industrial practices release greenhouse gases. These gases greenhouse effect, absorb some of the heat that the Earth Thermal radiation, radiates after it warms from sunlight, warming the lower atmosphere. Carbon dioxide, the primary gas driving global warming, Carbon dioxide in Earth's atmosphere, has increased in concentratio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington State Route 20
State Route 20 (SR 20), also known as the North Cascades Highway, is a State highways in Washington, state highway that traverses the U.S. state of Washington (state), Washington. It is the state's longest highway, traveling across the northern areas of Washington, from U.S. Route 101 in Washington, U.S. Route 101 (US 101) at Discovery Bay, Washington, Discovery Bay on the Olympic Peninsula to U.S. Route 2 in Washington, US 2 near the Idaho state border in Newport, Washington, Newport. The highway travels across Whidbey Island, North Cascades National Park, the Okanagan Highland, the Kettle River Range, and the Selkirk Mountains. SR 20 connects several major north–south state highways, including Interstate 5 in Washington, Interstate 5 (I-5) in Burlington, Washington, Burlington, U.S. Route 97 in Washington, US 97 through the Okanogan, Washington, Okanogan–Omak, Washington, Omak area, Washington State Route 21, SR 21 in Republic, Washi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avalanche
An avalanche is a rapid flow of snow down a Grade (slope), slope, such as a hill or mountain. Avalanches can be triggered spontaneously, by factors such as increased precipitation or snowpack weakening, or by external means such as humans, other animals, and earthquakes. Primarily composed of flowing snow and air, large avalanches have the capability to capture and move ice, rocks, and trees. Avalanches occur in two general forms, or combinations thereof: slab avalanches made of tightly packed snow, triggered by a collapse of an underlying weak snow layer, and loose snow avalanches made of looser snow. After being set off, avalanches usually accelerate rapidly and grow in mass and volume as they capture more snow. If an avalanche moves fast enough, some of the snow may mix with the air, forming a powder snow avalanche. Though they appear to share similarities, avalanches are distinct from slush flows, Mudflow, mudslides, Landslide#Debris landslide, rock slides, and serac collap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmentalists
Environmentalism is a broad philosophy, ideology, and social movement about supporting life, habitats, and surroundings. While environmentalism focuses more on the environmental and nature-related aspects of green ideology and politics, ecologism combines the ideology of social ecology and environmentalism. ''Ecologism'' is more commonly used in continental European languages, while ''environmentalism'' is more commonly used in English but the words have slightly different connotations. Environmentalism advocates the preservation, restoration and improvement of the natural environment and critical earth system elements or processes such as the climate, and may be referred to as a movement to control pollution or protect plant and animal diversity. For this reason, concepts such as a land ethics, environmental ethics, biodiversity, ecology, and the biophilia hypothesis figure predominantly. The environmentalist movement encompasses various approaches to addressing environme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
49th Parallel North
The 49th parallel north is a circle of latitude that is 49degree (angle), ° true north, north of Earth's equator. It crosses Europe, Asia, the Pacific Ocean, North America, and the Atlantic Ocean. The city of Paris is about south of the 49th parallel and is the largest city between the 48th parallel north, 48th and 49th parallels. Its main airport, Charles de Gaulle Airport, lies on the parallel. Roughly of the Canada–United States border was designated to follow the 49th parallel from British Columbia to Manitoba on the Canada side, and from Washington (state), Washington to Minnesota on the United States, U.S. side, more specifically from the Strait of Georgia to the Lake of the Woods. This Border, international border was specified in the Anglo-American Convention of 1818 and the Oregon Treaty of 1846, though survey markers placed in the 19th century cause the border to deviate from the 49th parallel by up to . From a point on the ground at this latitude, the sun is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada–United States Border
The international border between Canada and the United States is the longest in the world by total length. The boundary (including boundaries in the Great Lakes, Atlantic, and Pacific coasts) is long. The land border has two sections: Canada's border with the Northern Tier (United States), northern tier of the contiguous United States to its south, and with the U.S. state of Alaska to its west. The bi-national International Boundary Commission deals with matters relating to marking and maintaining the boundary, and the International Joint Commission deals with issues concerning boundary waters. The agencies responsible for facilitating legal passage through the international boundary are the Canada Border Services Agency (CBSA) and U.S. Customs and Border Protection (CBP). History 18th century The Treaty of Paris (1783), Treaty of Paris of 1783 ended the American Revolutionary War between Kingdom of Great Britain, Great Britain and the United States. In the second article o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Fur Trade
The North American fur trade is the (typically) historical Fur trade, commercial trade of furs and other goods in North America, beginning in the eastern provinces of French Canada and the northeastern Thirteen Colonies, American colonies (soon-to-be northeastern United States). The trade was initiated mainly through French, Dutch and English settlers and explorers in collaboration with various Indigenous peoples of the Americas, First Nations tribes of the region, such as the Huron tribe, Wyandot-Huron and the Iroquois; ultimately, the fur trade's financial and cultural benefits would see the operation quickly expanding coast-to-coast and into more of the continental United States and Alaska. Competition in the trade especially for the European market, led to various wars among indigenous peoples aided by various European colonial allies. Europeans began their participation in the North American fur trade from the initial period of their European colonization of the Americas, c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Skagit Indian Tribe
The Upper Skagit Indian Tribe () is a List of federally recognized tribes in the contiguous United States, federally-recognized Indian tribe located in the U.S. state of Washington (state), Washington. The tribe is the successor-in-interest to approximately eleven historic tribes (or bands) which had many permanent villages along the Skagit River in what is now Skagit County, Washington, Skagit County. For thousands of years, the predecessors of the Upper Skagit Indian Tribe lived along the Skagit River, Hunter-gatherer, hunting, fishing, and gathering. Their territory extended from as far downstream as what is now Mount Vernon, Washington, Mount Vernon to as far upstream as Newhalem, Washington, Newhalem. They are related to other Coast Salish, Coast Salish peoples, and historically spoke the Lushootseed, Lushootseed language, a heritage language for several tribes in the Puget Sound region. The predecessor bands to the Upper Skagit Tribe were signatory to the Treaty of Point El ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
