I wrote this on Earth Day 2013.
I'm not sure I have much to add a year later. Certainly, not much has changed on a global scale, except the increasing concentration of CO2 in the atmosphere and the ever-more-urgent dittoing.
We know what we we need to do. Indeed, the economic impact of those actions would be surprisingly small. The logic behind a clean energy policy is not hard to understand. The Obama Administration gets it - it has done more on climate and renewable energy than all of its predecessors combined, without the credit that those moves deserve.
Still, public opinion on the urgency of tackling climate disruption lags. Ideology blinds. And the frog continues to slowly boil.