The most blatant examples are increased power and frequency in hurricanes and the increased depth and frequency of heat waves.

I think the same around the world. At 350.org we just trained 500 young people from around the world in Istanbul for a few weeks. We had 5000 applications from young people who wanted to be part of the training. There's real hunger out there.

I think that it is impossible to think of a threat to social justice greater than what we are doing to the earth's atmosphere at the moment.

Without a movement pressing for change, there's little hope. We've got to work the political system to make this happen fast. The physics and chemistry are daunting. The resources on the other side are very large.

Profiting from companies that are overloading the atmosphere with carbon and changing the atmosphere is wrong.

People in low-lying countries like Bangladesh with almost 140 million people who are managing to feed themselves, whose carbon emissions can't really be calculated (they are a rounding error in the UN's attempts to do national comparisons), and yet, most of whose people are at risk from increased flooding due to rising sea levels.

Policies that engage us again in the international fight for real climate protection.