First things first, it is important to remember that Al Gore ≠ Global Warming. So, it doesn't really matter what he thinks about climate change. That said, he's optimistic we're reaching a positive tipping point on climate politics.
For me, organizing is about people. I love that moment when a new volunteer realizes that she has the power to effect change. That she has the power to influence decision-makers and make a positive impact in her community.