It's not all Obama's fault: His plans to rebuild America's energy infrastructure have been hampered by the recession, and his efforts on global warming have been stymied by Tea Party wackos and weak-kneed Democrats in Congress.

One of the big questions in the climate change debate: Are humans any smarter than frogs in a pot? If you put a frog in a pot and slowly turn up the heat, it won't jump out. Instead, it will enjoy the nice warm bath until it is cooked to death. We humans seem to be doing pretty much the same thing.

Some studies suggest that the Arctic Ocean may be ice-free by the end of the century.

Geoengineering - the deliberate, large-scale manipulation of the earth's climate to offset global warming - is a nightmare fix for climate change.

Obama's record on climate issues is not all bad.

When it comes to energy, cost isn't everything - but it's a lot. Everybody wants cheap power.

For better or worse, the bulk of coal industry jobs are in Appalachia - and when that coal is gone, so are the jobs.