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Published: Saturday 10 August, 2013

isabel marant outlet online isabel marant outlet online Cuts in some greenhouse gases could slow sea level rise

A quick way to stave off impending sea level rise isabel marant outlet online is to cut emissions of shortlived climate warmers such as methane and soot, researchers suggest.

Carbon dioxide, isabel marant outlet online the main cause of anthropogenic climate change, can linger in the atmosphere for more than a century. So slashing CO2 output will not immediately halt global warming and its consequences. A faster way may be to limit methane, ozone, hydrofluorocarbons and soot, also known as black carbon. These greenhouse gases and particles warm the atmosphere but they stay aloft only weeks to years. Recent work showed that this a isabel marant outlet online pproach may reduce the expected rise in global temperatures by 0.6 degrees Celsius by 2050.

A team led by Veerabhadran Ramanathan of the Scripps Institution of Oceanography in La Jolla, Calif., wondered whether cutting these four climate pollutants would also slow global sea level rise. Scientists expect sea levels to jump because of melting ice sheets and thermal expansion of the oceans. The researchers ran climate simulations in which emissions of these pollutants or gases that ultimately produce the pollutants shrank by 30 to 50 percent over the next few decades. Sea level rise dropped 10 percent by 2050 and 22 percent by 2100 compared with simulations without these cuts, the team reports April 14 in Nature Climate Change. isabel marant outlet online