I think that some of it is electoral - helping candidates that are willing to take dramatic actions, not just to say a few words about how climate change might be a problem.

It is unbelievably sad and ironic that the first victims of global warming are almost all going to come from places that are producing virtually none of the problem.

For the first time in 150 years, the USDA reported there were more farms in America, not fewer. That has to make you happy.

Katrina opened a good door and Al Gore went through it with his movie.

There's always the danger that people will simply sign online petitions, the way they used to just mail in checks, and there's the greater possibility we'll just spend our whole lives staring at screens and never get anything done.

If there's horrible flooding in Pakistan or a horrible heat wave in Texas, we're no longer able to call it an act of God, or a natural disaster, or something like that, the way we could have through all of human history until 35 or 40 years ago.

There are many places where we need to fight important battles to make sure that customers have access to solar.