barack obama who obviously accepts the science on climate change has negotiated the agreement with china, that it's played a destructive role, that it has watered things down? do you agree with this? are you confident that this administration is playing the leadership role you'd like to see it make? >> compared to my republican colleagues, who unbelievably refuse to accept the science, refuse to do nothing to transform our energy system, our very dependent on the koch brothers and the fossil fuel industry for their campaign funding. obviously the president is doing a very good job compared to them. should he be doing more? yes, i think so. let me be clear. i see this as the major planetary environmental crisis that we face. and if you read what the scientists are telling us, what they are saying is there is a very short window of opportunity in order to prevent the temperature of this planet from