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.

Those of us in the west have figured out a lot of ways to damage the lives of poor people in this country and around the world over the years.

At least I sure hope it will - and I see good signs all the time, especially in things like the rise of local agriculture.

All things considered, the internet seems fairly environmentally benign to me. The last stats I saw showed you could do 1,000 Google searches for the gas it took to drive six-tenths of a mile. But the internet can't substitute for real connection and community.

It now appears that the fracturing of that ice is happening much more quickly than people previously thought, apparently at a slow melt.

The world is on fire, and I'm doing my best to help steer the firetruck.

The idea that China and India will just abandon climate action is not true, because they're doing it for more reasons than we are.