Methane Burps and Heat Waves: Global Warming Made Visible

Whatever climate scientists may currently disagree about (and good scientists are always disagreeing about something) virtually all of them have long since agreed that human activity — burning fossil fuels — has been making the global temperature go up. And now they have two very sobering, visual ways to explain how.

The first is in the basement of a futuristic building in the foothills of the Colorado Rockies and requires a special pass, the other is down on the sea floor off the coast of California, requiring SCUBA gear and a waterproof map.
ABC