By themselves, they are not enough; we also need to engage in political action.

We'd like to get the fossil fuel industry on the back foot for a while, having to deal with us.

If it's wrong to wreck the planet, it's wrong to profit from the wreckage.

We've abnegated the Kyoto treaty, we've instituted a voluntary program that's obviously not been working, we've taken every effort to excise references to global warming from official documents, to try to undermine international conferences that work on environmental issues, and on and on and on.

There's a part of all of us whose impulse is to say, "Let's keep everything the same until I die and then you can do whatever you want afterward." And that's a difficult part.

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

We have assumed control where once we worked with what we were given.