We could have had clean energy a long time ago.

We say clean energy is the right of all countries.

Here we are talking about research and the future of clean energy.

"But until then the price for clean energy is going to remain high."

Want to start using cleaner energy but aren't sure about your first step?

So the move must be cleaner energy, and use less of it.

I don't know what that will be as a percentage but it still shows China are serious about clean energy.

We are not doing enough to develop clean energy from coal.

Obama said that he "will not walk away from the promise of clean energy."

My support for the generation of clean energy does not apply to this addition.