Truthdig: President Obama has long expressed concern about climate change and its impacts, and was mocked by Mitt Romney for saying he wanted to stop the rising of the seas. But climate change activists have been dismayed that the president nevertheless spoke of an "all of the above" energy policy, urging further oil and gas exploitation, talking about unicorns like clean coal, and generally doing little to tackle the enormous problem.
The US emits 5 billion metric tons of carbon dioxide a year, more than...