I get that, and it's the biggest challenge we'll face in our times. But I really can't feel bad about it, in the same way I don't feel bad about the coal indus

I get that, and it's the biggest challenge we'll face in our times. But I really can't feel bad about it, in the same way I don't feel bad about the coal industry going belly-up, or the rest of the fossil fuel industry. I'm sorry, but it has to change. It is not sustainable.