“There are philosophical issues involved in that about choosing the right discount rate, the value, the future, and things like that which drive it. But its start with the premise that global warming is real and if you're a denier of that fact, then you're not going to find climate change mitigation ”

“The Senate is a remarkable institution. It is unique. There is no other body, no other political body, no other democratic legislature in the world quite like the U.S. Senate.”