Sunday 18 March 2012

GLOBAL WARMING on the water supply

So, why NUCLEAR?
Global warming has become a hot issue around the world ,from the past decade until now,getting worse and worse day by day.It brings many environmental problem and it affects your daily life more than you know.
One of the biggest impacts that it brought upon us is the climate change , or you can call it the "global-werirding", "weather haywire"
Climate change will have a significant impact on the sustainability of water supplies in the coming decades new analysis, performed by consulting firm Tetra Tech for the Natural Resources Defense Council (NRDC), 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



This analysis shows that climate change will have significant impacts on water supplies throughout the world in the coming decades facing greater risks of water shortages due to the effects of climate change.
 While water management and climate change adaptation plans will be essential to lessen the impacts, they cannot be expected to counter the effects of a warming climate. One reason is that the changes may simply outrun the potential for alternatives such as modifying withdrawals, increasing water use efficiency, increased water recycling, enhancing groundwater recharge, rainwater harvesting and inter-basin or inter-county transfers to make up for water deficits. The widespread nature of the risk of water shortages may also limit the effectiveness of local solutions—such as acquiring more water from a neighboring county or basin—since many other localities will be trying to get control of the same resource. Further, the pressure on water supplies will not cease in 2050. If climate warming continues to increase, we can expect the risks of water shortages to increase with it. There is no way to truly manage the risks exposed by this report other than taking the steps necessary to slow down and reverse the warming trend. Doing so requires congressional action and global leadership.

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