Gallup: "the threat Americans feel from global warming has dissipated"; in China, "slightly fewer than one in three (32%) respondents see [global warming] as a serious personal threat"

World's Top-Emitters No More Aware of Climate Change in 2010

Although the U.S. never signed on to the Kyoto protocol, like the Japanese, most Americans (96%) are aware of global warming and climate change. While their knowledge level has not changed in the past few years, the threat Americans feel from global warming has dissipated. Fifty-five percent of Americans who are aware of climate change view it as a serious personal threat, down from 64% in 2007 and 2008. They are also now less likely to attribute global warming to human causes, but half (50%) still at least partly blame humans.
...
China rivals the U.S. for the top spot on the greenhouse gas emitters list, but fewer residents (65%) say they are aware of climate change. Chinese residents who are aware of climate change are significantly more likely than Americans to blame humans for global warming. While Chinese see humans as the culprits, the country stands out among all top emitters with slightly fewer than one in three (32%) respondents seeing it as a serious personal threat.