The Arctic and the Antarctic are melting quickly. We may have waited too long to get started. But this is a day for optimism because the battle is fully joined, and the idea that big oil is unbeatable is no longer true.

In the last two years 24 countries have set new all-time temperature records. We've seen flooding on an epic scale in every continent .

TV, and the culture it anchors, masks and drowns out the subtle and vital information contact with the real world once provided. There are lessons, enormous lessons, lessons that may be crucial to the planet's persistence as a green and diverse place and also to the happiness of it's inhabitants-that nature teaches and TV can't.

A price on carbon sufficient to keep 80% of current reserves underground, rebated directly to citizens.

I think we need to go straight at the fossil fuel industry.

Global warming is no longer a philosophical threat, no longer a future threat, no longer a threat at all. It's our reality.

One degree turns out to be enough to really unhinge all sorts of earth's ecosystems.