"What it really comes down to is whether, as a nation,
as the most powerful nation on Earth,
we are going to listen to the science.
When we build weapons systems that cost billions of dollars,
we take it for granted that the engineers know what they're talking about.
When we invest in cancer research through the National Institute of Health,
we assume and believe that the doctors and scientists know what they are talking about.
But right now we are in a very strange moment in American History: we have virtually an entire political party that is rejecting basic science.
For some strange reason, while we agree on science in almost every area of our life, in this area we have a party that says 'No! Climate change is not real! It is maybe a Hoax! something concocted by Al Gore or Hollywood!'
While we can disagree on a million issues, we should not disagree when scientists tell us we have a window of opportunity, 10 or 15 years, to turn this thing around.
Somebody has got to lead-- This country leads.
And when we lead in transforming our energy system away from fossil fuels, we create millions of jobs.
On this issue, we can at least respect Science. We can respect the Planet. We can transform our energy system. And most importantly, maybe at the end of the day: we have a moral responsibility for our children and grandchildren, so that 30 years from now they do not look us in the eye and they say 'Hey, all the scientists told you what was going on -- Why didn't you do something?'