Geography

Geography is the study of natural and human constructed phenomena from a spatial perspective. Geography has two main sub disciplines:

  • Human geography includes such subjects as demography, human settlements, transportation, recreation and tourism, resources, religion, social traditions, human migration, agriculture, urban systems, and economic activities
     
  • Physical geography  is concerned with the study of the Earth’s atmosphere, biosphere, hydrosphere, and lithosphere from theoretical and applied viewpoints.

Sometimes the disciplines of human and physical geography combine knowledge to create a more holistic synthesis.

  • Borneo peat swamp forests Featured Article Borneo peat swamp forests Borneo peat swamp forests

    WWF Terrestrial Ecoregions Collection Although the Borneo peat swamp forests are not as biodiverse as neighbouring lowland rainforests, the... More »

  • Terrestrial biome Featured Article Terrestrial biome Terrestrial biome

    Introduction Many places on Earth share similar climatic conditions despite being found in geographically different areas. As a result of natural selection, comparable... More »

  • English Channel Featured Article English Channel English Channel

    The English Channel is that saline water body that connects the North Sea to the Celtic Sea. It is bounded on the north by England and on the south by France. This water body... More »

  • Northern California coast Featured Article Northern California coast Northern California coast

    The Northern California coast section encompasses diverse topography including mountains, hills, valleys and plains in the Northern California Coast Ranges and small parts of... More »

  • Sea of the Hebrides Featured Article Sea of the Hebrides Sea of the Hebrides

    The Sea of the Hebrides is an element of the North Atlantic Ocean, located off the western coast of Scotland, separating the Scottish mainland and the northern Inner Hebrides... More »

  • Guatemala Featured Article Guatemala Guatemala

    Guatemala is a Central American nation of fourteen million people located between Mexico, El Salvador, Honduras and Belize. Its western coast fronts to Pacific Ocean and... More »

  • Lake Urmia Featured Article Lake Urmia Lake Urmia

    Lake Urmia is a shallow perennial inland salt water body in northwestern Iran. This lake is the second largest in the Middle East, measuring roughly 5000 square kilometers in... More »

  • Don Juan Pond Featured Article Don Juan Pond Don Juan Pond

    The Don Juan Pond in western Antarctica is the most saline water body on Earth, at approximately twelve to thirteen times the salinity level of other typical seas of the world.... More »

Recently Updated
Mexico Last Updated on 2015-02-28 19:15:51 Mexico is a North American nation of one hundred and fifteen million people located between the United States to the north and the Central American nations of Guatemala and Belize to the south. Mexico's main environmental issues include: scarcity of hazardous waste disposal facilities; rural to urban migration; scarce and polluted fresh water resources in the northern parts of the country: inaccessible and poor water quality in central regions and extreme southeast regions; raw sewage and industrial effluents polluting rivers in urban areas; deforestation; widespread erosion; desertification; deteriorating agricultural lands; serious air and water pollution in the national capital and urban centers along US-Mexico border; and, land subsidence in Valley of Mexico caused by groundwater overdrafting. The Mexican government considers both the lack of clean water and... More »
Willamette Valley forests Last Updated on 2015-02-24 12:32:39 WWF Terrestrial Ecoregions Collection The Willamette Valley forests ecoregion is an element of the Temperate Broadleaf  and Mixed forests biome in the Pacific Northwest region of the USA. Once a prairie supporting oak stands and groves of Douglas-fir and other trees, cultivation and development have destroyed nearly all of the natural habitat in the Willamette Valley. Just one-tenth of one percent of the valley’s native grasslands and oak savannas remains. Fire shaped the Willamette Valley, as it did most of the northwest grassland and savanna communities. Possibly dating back to the Pleistocene era, periodic burning by Native Americans created ideal conditions for native perennial grasses. More recent fire suppression activities–with the concurrent spread of agriculture and development–have contributed enormously to the... More »
Puget lowland forests Last Updated on 2015-02-14 17:58:34 WWF Terrestrial Ecoregions Collection The Puget lowland forests occupy a north-south topographic depression between the Olympic Peninsula and western slopes of the Cascade Mountains, extending from north of the Canadian border to the lower Columbia River along the Oregon border. The portion of this forest ecoregion within British Columbia includes the Fraser Valley lowlands, the coastal lowlands locally known as the Sunshine Coast and several of the Gulf Islands. This ecoregion is within the Nearctic Realm and classified as part of the Temperate Coniferous Forests biome. This ecoregion is distinct from the mountainous hydro-riparian systems to the west, as well as the drier areas to the north and east. The Puget Sound Valley is a topographically depressed previously glaciated area consisting of moderately dissected tableland covered by glacial till,... More »
Sierra Nevada forests Last Updated on 2015-01-29 19:20:06 WWF Terrestrial Ecoregions Collection The Sierra Nevada forests are the forested areas of the Sierra Nevada Mountains, which run northwest to southwest and are approximately 650 kilometers long and 80 km wide. The range achieves its greatest height towards the south, with a number of peaks reaching heights of over 4000 meters. Several large river valleys dissect the western slope with dramatic canyons. The eastern escarpment is much steeper than the western slope, in general.   The range supports a diverse set of natural communities with many endemic species and extraordinary habitats. A significant fraction of the land area in the Sierra Nevada Mountains is unforested, since elevations above the treeline do not support even conifer growth. This ecoregion is part of the Nearctic Realm. The Sierra Nevada forests ecoregion harbors one of... More »
Eastern Cascades forests Last Updated on 2015-01-19 22:30:17 WWF Terrestrial Ecoregions Collection The Eastern Cascades forests span the eastern slopes of the Cascade Mountains in Oregon and Washington, from the southern reaches of the Cascade Mountains Leeward Forests to northern California. Vegetation is highly variable throughout this ecoregion, being influenced chiefly by edaphic processes and disturbance regimes. Several ecotones exist, particularly along the Cascade crest where western Cascade forest types overlap with eastern Cascade forests (e.g., the Wenatchee National Forest in Washington has conifer species present on both sides of the Cascades) and along the lower timberline, where forest species mix with shrub and shrub-steppe communities. This ecoregion is considered part of the Nearctic Realm, and is given the ecocode NA0512 by the World Wildlife Fund; it is within the Temperate Coniferous... More »