The political climate on climate change is changing faster than climate change, and not a moment too soon. Al Gore testifies to Congress this week. A demonstration featuring important Democratic Congressmen, including Ed Markey in particular, will occur in front of the Capitol. The news pages every day carry accounts of effects, remedies, new investment ideas. Look to the candidates to advance multiple suggestions, creating a kind of litmus test for getting elected. The mood is changing. A movie made it happen? One man made it happen? Not necessarily so...but sometimes a person, a video, a song can each constitute a tipping point. As Al Gore used to say, quoting a Zen master, as I recall: Be the change you wish to see. He has been exactly that.