So I was talking about this at work using heat energy....

[Kalidurga]

I was thinking about global warming actually and had a thought that perhaps we can use this problem as part of the solution. Of course, everyone looks at me like I am nuts when I propose things like this. But, I was thinking heat is energy and if there is more heat energy via global warming perhaps we could transfer much of that energy into running machinery and even us it for cooling our homes. So, I did a bit of a search found this on my first try.

http://www.green-energy-news.com/arch/nrgs2009/20090029.html