The U.S. is clearly on a path of CO2 reduction (unlike Russia, China, India), and the U.S. clearly does not need any type of radicalized policy in order to continue down the path of CO2 reduction (and the most interesting thing is, the true scientists are saying that there's no way it can be definitively said that C02 is causing climate change. Or they are saying that IF C02 is causing climate change or climate forcing they are still years away at best, and may likely never understand the full extent of the impact of C02 emissions on the climate. At the end of the day, real scientists say again and again in peer reviewed paper after paper they simply don't know, and that the science is far from settled and many scoff at the notion of a "settled science").
The following article by Roger Pielke a climate and atmospheric scientist of some renown and a believer that man made emissions are impacting the environment (like most of us, duh) excoriates John Holdren, one of the senior science advisers for the Obama Administration. I will say that I absolutely disagree with Pielke's call for additional taxes to mitigate the impact of man made emissions, because the things that emit the speculated harmful gasses are already taxed at extremely high levels. But back to the article, Pielke attacks the claim that AGW is causing an increase in substantial climate/weather events like floods, storms etc. etc. Or in other words, normal weather events are being exaggerated and politicized for the advancement of a political movement, and Pielke is saying there's no way such a claim can be made at this time based on the best information available. Peilke is one of a few experts who are are attempting to stay above the environmental political agenda, unfortunately everytime Peilke (or similar) speaks out, along comes some government cheeser dining at the trough of government largess to shout them down.
http://www.newrepublic.com/article/116887/does-climate-change-cause-extreme-weather-i-said-no-and-was-attacked