giving the tools to the epa to respond accordingly. that's something thaed that needs to be talked about as we go forward on this issue. it's very important we don't disregard that very important component. >> do you believe climate change is a global emergency? >> i think the clean air act when you look at the structure of the clean air act, it was set up to dealpollutants. if anything, it's a global issue. i think there's a very fundamental question, in fact, it came up in several meetings that i have with with individual senators. has congress equipped the epa to deal with that issue, if it's a priority of this country. and they have not, wolf, so that's something that we're going to have to wrestle with and deal with as we go forward. that there's an issue about the endangerment in the supreme court case, but there's a very important process question that has to be addressed on whether congress has given authority, invested the epa to deal with it. >> the question is, is it a crisis right now? will you continue to allow epa scientists to study the human connectivity to climate change?