Global warming is a grave and growing threat to our national security.

It’s time to make the cleaner way of doing business the more profitable way of doing business.

We will also explore safer ways to use nuclear power, which right now accounts for more than 70% of our non-carbon generated electricity.

We can't afford to wait any longer.

I will let them know that America is up to the challenge.

It is time the world could point to America again.

Today I want to lay out the second part of my plan - a set of proposals that will allow America to lead the world in combating global climate change.

He's the only candidate in this race who has the ability to unite people for real change in our energy policy.

Solving our global warming problem is the moral, business, policy and political challenge of our generation.

It will not be easy. It will not come without cost or without sacrifice.

And if we act now and we act boldly, it doesn't have to be.