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16 Topic Pages Found in Environmental Sciences and starting with the letter W
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Open Wallace, Alfred Russel, 1823-1913
Wallace, Alfred Russel, 1823-1913

Alfred Russel Wallace (1823-1913), British naturalist, evolutionist, geographer, anthropologist, and reformer, was a central figure in the emergence

Open Water
Water

Chemical compound of hydrogen and oxygen elements – H 2 O. It can exist as a solid (ice), liquid (water), or gas (water vapour). Water is the most

Water cycle

The water cycle, frequently referred to as the hydrologic cycle, is a continuous movement of water on, above, and below the surface of the earth. It

Open Water law
Water law

GIVEN THE PRIME importance of water in all human activities, available water resources need to be protected, conserved, and managed in terms of both

Open Water pollution
Water pollution

contamination of water resources by harmful wastes; see also sewerage , water supply , pollution , and environmentalism .

Open Water scarcity
Water scarcity

Water scarcity could become one of the most pressing natural resource issues of the twenty-first century. Earth's population has nearly tripled since

Open Weather
Weather

state of the atmosphere at a given time and place with regard to temperature, air pressure (see barometer ), wind, humidity, cloudiness, and

Weather forecasting

Prediction of changes in the weather . The forecast is based on several different types of information from several sources. Weather stations are

Open Weathering
Weathering

Breakdown and chemical disintegration of rocks and minerals at the Earth's surface by physical and chemical processes. In physical weathering in cold,

Open Wetlands
Wetlands

low-lying ecosystem where the water table is always at or near the surface. It is divided into estuarine and freshwater systems, which may be further