Las Vegas Sun

February 12, 2012

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Sun Editorial:

Brutal century ahead

Federal report details drastic impacts of global warming on the Southwest

Monday, June 22, 2009 | 2:05 a.m.

The first detailed report issued by the Obama administration on global warming paints a grim picture of the projected effects of climate change in the United States.

“Global Climate Change Impacts in the United States,” a study released last week by 13 science agencies with assistance from major universities, should be of particular interest to Southern Nevadans.

Compared with the period from 1960 through 1979, temperatures in the Southwest are expected to rise 4 to 10 degrees by the end of the century.

The chance for longer-lasting heat waves could force the region’s residents to use more air conditioning, which would increase the risk of blackouts as electricity supplies become depleted.

The report also warned that the region, already suffering an extended drought as evidenced by declines in Colorado River flow and spring snowpack, should be prepared to face large reductions in spring precipitation by the end of the century. With that, combined with temperature increases and rapid population growth, the Southwest can expect increased competition for water.

The rising temperatures will also lead to more wildfires, and the loss of wetlands will cause more flooding along rivers. Also, ski resort areas will have less snow, cutting recreational opportunities.

While all of this sounds like a doomsday movie script, it is being presented to the public in all seriousness by many of the country’s top scientists.

The responsible thing for this nation to do would be to take the advice of John Holdren, director of the White House Office of Science and Technology. He recommended a reduction in harmful emissions globally, combined with local measures to reduce damage from environmental changes that are no longer avoidable.

President Barack Obama and Congress should press ahead with strategies to promote increased use of renewable energy, stricter limits on factory pollution and production of automobiles that get better gas mileage.

Southern Nevadans can play a role, too, by conserving water and taking greater advantage of the state’s solar, wind and geothermal resources.

Without these measures, conditions in the Southwest are bound to get worse.

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