全球变暖有哪些坏处?请用英文表达!谢谢

EPA: Global Warming Threatens Public Health, Welfare
The Environmental Protection Agency sent a proposal to the White House on Friday finding that global warming is endangering the public's health and welfare, according to several sources, a move that could have far-reaching implications for the nation's economy and environment.
The proposal -- which comes in response to a 2007 Supreme Court decision ordering EPA to consider whether carbon dioxide and other greenhouse gases should be regulated under the Clean Air Act -- could lay the groundwork for nationwide measures to limit such emissions. It reverses one of the Bush administration's landmark environmental decisions: In July 2008 then-EPA administrator Stephen Johnson rejected his scientific and technical staff's recommendation and announced the agency would seek months of further public comment on the threat posed by global warming pollution.
"This is historic news," said Frank O'Donnell, who heads the public watchdog group Clean Air Watch. "It will set the stage for the first-ever national limits on global warming pollution. And it is likely to help light a fire under Congress to get moving."
But business groups decried the move as an economic disaster.
"By moving forward with the endangerment finding on greenhouse gases, EPA is putting in motion a set of decisions that may have far-reaching unintended consequences," said Bill Kovacs, vice president of environment, technology and regulatory affairs at the U.S. Chamber of Commerce. "Specifically, once the finding is made, no matter how limited, some environmental groups will sue to make sure it is applied to all aspects of the Clean Air Act.

Glaciers melt sea level rise