Global
Warming
What is Global Warming
Global warming is the term used to describe a gradual
increase in the average
temperature of the Earth's
atmosphere and its oceans,
a change that is believed to
be permanently changing the Earth's climate.
Effects Of Global Warming The effects of global warming are the
environmental and social changes caused (directly or indirectly) by human emissions of
greenhouse gases.
Many impacts of climate change have already
been observed, including glacier retreat, changes
in the timing of seasonal events, and changes in
agricultural productivity.
Climate Change Climate change include increases in global
surface temperature (global warming), changes in rainfall patterns, and changes in the frequency
of extreme weather events.
Climatic Changes Climate change will have a significant impact on
the sustainability of water supplies in the coming decades. A new analysis, performed by consulting firm Tetra Tech for the Natural Resources Defense Council, examined the effects of global warming on water supply and demand in the contiguous United States. The study found that more than 1,100 counties, one-third of all counties in the lower 48 will face higher risks of water shortages by mid-century as the result of global warming. More than 400 of these counties will face extremely high risks of water shortages.
References
http://en.wikipedia.org/wiki/Effects_of_glo
bal_warming
http://en.wikipedia.org/wiki/Global_warm
ing
http://www.nrdc.org/globalwarming/wat
ersustainability/files/WaterRisk.pdf
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