The science is in: CO2 emitted by human activities is driving the recent changes in our climate. If we continue to burn fossil fuels at the current rate, catastrophic consequences for this planet -- the one we live on -- are all but assured. Not only is switching to renewable energy the environmentally responsible and socially just thing to do, it can also be profitable. But the playing field is still too far tilted by corporate cash. We need to start putting our money where our mouth is.