Cordilleran

The Wisconsin (in North America), Weichsel (in Scandinavia), Devensian (in the British Isles), Midlandian (in Ireland) and Würm glaciation (in the Alps) are the most recent glaciations of the Pleistocene, which ended around 10,000 BC. The general glacial advance began about 70,000 BC, and reached its maximum extent about 18,000 BC. In Europe, the ice sheet reached northern Germany. The term ice age can refer to all the periods of glaciation during the late Pliocene and Pleistocene, from 2.5 m ...

Including:

• Wisconsin glaciation - Weichsel glaciation in Scandinavia
• Wisconsin glaciation - Devensian glaciation
• Wisconsin glaciation - Wisconsin glaciation in North America
• Wisconsin glaciation - Würm glaciation in the Alps
• Wisconsin glaciation - External link

Read more here: » Wisconsin glaciation: Encyclopedia - Wisconsin glaciation

In Scandinavia, only the western parts of Jutland (a part of Denmark) were ice-free during the glaciation and a large part of what is today the North Sea was dry land connecting Jutland with Britain. It is also in Denmark that the only finds of Scandinavian ice-age animals older than 13,000 BC are found. In the period following the last interglacial period before the current one (Eemian interglacial era) the coast of Norway was also ice-free. The Baltic Sea, with its unique brackish water, is a result of meltwater from the Weichsel gl ...

See also:

Wisconsin glaciation, Wisconsin glaciation - Weichsel glaciation in Scandinavia, Wisconsin glaciation - Devensian glaciation, Wisconsin glaciation - Wisconsin glaciation in North America, Wisconsin glaciation - Würm glaciation in the Alps, Wisconsin glaciation - External link

Read more here: » Wisconsin glaciation: Encyclopedia II - Wisconsin glaciation - Weichsel glaciation in Scandinavia

Map of the United States (PDF) The geography of the United States varies across its immense area. Within the contential U.S., eight distinct physiographic divisions exist, though each is composed of several smaller physiographic subdivisions. These major divisions are the: Laurentian Highlands - part of the Canadian shield that extends into the northern United States Great Lakes area. Atlantic Plain - the coastal regions of the eastern and southern parts includes the continental shelf, the Atlantic Coast ...

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Geography of the United States, Geography of the United States - Area, Geography of the United States - Physical geography, Geography of the United States - Cultural regions, Geography of the United States - Climate, Geography of the United States - Natural resources, Geography of the United States - Environment, Geography of the United States - Public lands

Read more here: » Geography of the United States: Encyclopedia II - Geography of the United States - Physical geography

Environment - current issues: air pollution resulting in acid rain in both the US and Canada; the US is the largest single emitter of carbon dioxide from the burning of fossil fuels; water pollution from runoff of pesticides and fertilizers; very limited natural fresh water resources in much of the western part of the country require careful management; desertification Environment - international agreements: party to: Air Pollution, Air Pollution-Nitrogen Oxides, Antarctic-Environmental Protocol, Antarctic Treaty, Climate Change, Enda ...

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Geography of the United States, Geography of the United States - Area, Geography of the United States - Physical geography, Geography of the United States - Cultural regions, Geography of the United States - Climate, Geography of the United States - Natural resources, Geography of the United States - Environment, Geography of the United States - Public lands

Read more here: » Geography of the United States: Encyclopedia II - Geography of the United States - Environment

The name Devensian glaciation is used by British geologists and archaeologists and refers to what is often popularly meant by the latest Ice Age. It was the final glacial phase of the Pleistocene and its deposits have been found overlying material from the preceding Ipswichian interglacial and lying beneath those from the following Flandrian stage of the Holocene. The latter part of the Devensian includes Pollen zones I-IV, the Alle ...

See also:

Wisconsin glaciation, Wisconsin glaciation - Weichsel glaciation in Scandinavia, Wisconsin glaciation - Devensian glaciation, Wisconsin glaciation - Wisconsin glaciation in North America, Wisconsin glaciation - Würm glaciation in the Alps, Wisconsin glaciation - External link

Read more here: » Wisconsin glaciation: Encyclopedia II - Wisconsin glaciation - Devensian glaciation

Natural resources: coal, copper, lead, molybdenum, phosphates, uranium, bauxite, gold, iron, mercury, nickel, potash, silver, tungsten, zinc, petroleum, natural gas, timber Land use: arable land: 19% permanent crops: 0% permanent pastures: 25% forests and woodland: 30% other: 26% (1993 est.) Irrigated land: 207,000 sq km (1993 est.) Natural hazards: tsunamis, volcanoes, and earthquake activity around Pacific Basin; hurricanes along the Atlantic and Gulf of Mexico coasts; tornadoes in the midwest and southeast; mud slides in California; forest fires in the west; floodi ...

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Geography of the United States, Geography of the United States - Area, Geography of the United States - Physical geography, Geography of the United States - Cultural regions, Geography of the United States - Climate, Geography of the United States - Natural resources, Geography of the United States - Environment, Geography of the United States - Public lands

Read more here: » Geography of the United States: Encyclopedia II - Geography of the United States - Natural resources

Climate: mostly temperate, but tropical in Hawaii and Florida, arctic in Alaska, semiarid in the Great Plains west of the Mississippi River, mediterranean in coastal California, and arid in the Great Basin of the southwest; low winter temperatures in the northwest are ameliorated occasionally in January and February by warm chinook winds from the eastern slopes of the Rocky Mountains. Terrain: vast central plain, mountains in west, hills and low mountains in east; rugged mountains and broad river val ...

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Geography of the United States, Geography of the United States - Area, Geography of the United States - Physical geography, Geography of the United States - Cultural regions, Geography of the United States - Climate, Geography of the United States - Natural resources, Geography of the United States - Environment, Geography of the United States - Public lands

Read more here: » Geography of the United States: Encyclopedia II - Geography of the United States - Climate

The Wisconsin or Wisconsinian was the last major advance of continental glaciers in North America. This glaciation is made of three glacial maximums (commonly called ice ages) separated by interglacial periods (such as the one we are living in). These ice ages are called (from oldest to youngest); Tahoe, Tenaya and Tioga. The Tahoe reached its maximum extent perhaps about 70,000 years ago while little is known about the Tenaya. The Tioga was the least severe and last of the Wisconsinan group and reached its greatest advance 20,000 yea ...

See also:

Wisconsin glaciation, Wisconsin glaciation - Weichsel glaciation in Scandinavia, Wisconsin glaciation - Devensian glaciation, Wisconsin glaciation - Wisconsin glaciation in North America, Wisconsin glaciation - Würm glaciation in the Alps, Wisconsin glaciation - External link

Read more here: » Wisconsin glaciation: Encyclopedia II - Wisconsin glaciation - Wisconsin glaciation in North America

The continental U.S. is often subdivided into six major cultural regions which not so coincidentally often share common natural features and terrain as well as similar ethnic groups. Those regions are: New England - One of the regions first settled by European immigrants, this region lies in the upper north-east of the U.S. geographically. New England is dominated by rocky uplands and sandy outwash plains and with a climate having stark seasonal changes. Mid-Atlantic - Another region settled earlier on in the U.S. histo ...

See also:

Geography of the United States, Geography of the United States - Area, Geography of the United States - Physical geography, Geography of the United States - Cultural regions, Geography of the United States - Climate, Geography of the United States - Natural resources, Geography of the United States - Environment, Geography of the United States - Public lands

Read more here: » Geography of the United States: Encyclopedia II - Geography of the United States - Cultural regions

The term Würm comes from a river in the Alps where the glaciation was first identified. Pollen analysis, the statistical analyses of microfossilized plant pollens found in geological deposits, has chronicled the dramatic changes in the European environment during the Würm glaciation. During the height of Würm glaciation, ca 24,000–10,000 ybp, most of western and central Europe and Eurasia was open steppe-tundra, while the Alps presented solid ice fields and montane glaciers, while Scandinavia and much of Britain ...

See also:

Wisconsin glaciation, Wisconsin glaciation - Weichsel glaciation in Scandinavia, Wisconsin glaciation - Devensian glaciation, Wisconsin glaciation - Wisconsin glaciation in North America, Wisconsin glaciation - Würm glaciation in the Alps, Wisconsin glaciation - External link

Read more here: » Wisconsin glaciation: Encyclopedia II - Wisconsin glaciation - Würm glaciation in the Alps