Sean Casten actually said...

"None of us do. The way that Paris was structured was to have voluntary, non-binding commitments to create a framework for all of us to try to build to something more permanent."

"we need to show that we have actions to match our words, and we have failed at that for 40 years."

"bad things happen when the United States doesn't lead."

"Methane is about 84 times as potent a greenhouse gas chemical as carbon dioxide."