Cast your mind back 2 years or so.

The USA was the Environmental Villain.

Europe was the hero - spouting the usual nonsense: "We'll just have to cut back to a simpler lifestyle, bla bla bla..."

I mentioned at the time that the USA was going to make the greatest contribution, not by cutting back, but by technology.

Here we are - One step closer to limitless clean energy.

http://news.bbc.co.uk/1/hi/sci/tech/7972865.stm