Considering the changes they are proposing, plenty.

Via Weekly Standard:

KERRY: If we make the necessary efforts to address this challenge – and supposing I’m wrong or scientists are wrong, 97 percent of them all wrong – supposing they are, what’s the worst that can happen? We put millions of people to work transitioning our energy, creating new and renewable and alternative; we make life healthier because we have less particulates in the air and cleaner air and more health; we give ourselves greater security through greater energy independence – that’s the downside. This is not a matter of politics or partisanship; it’s a matter of science and stewardship. And it’s not a matter of capacity; it’s a matter of willpower.

HT: Drudge