EarthTalk: What is 'nanotechnology'?

Dear EarthTalk: What is "nanotechnology"? I've heard that nanoparticles are already in consumer products, yet we haven't really studied their potential health impacts. (Dan Zeff, San Francisco)

Web 2.0 application developed to recommend television programmes

A group of researchers from the University of Vigo, Spain, has developed a Web 2.0 application that filters the programming schedules of hundreds of television channels to recommend programmes that viewers are most likely ...

Heart saves muscle

A heart muscle protein can replace its missing skeletal muscle counterpart to give mice with myopathy a long and active life, show Nowak et al. The findings will be published online on Monday, May 25, 2009 and will appear ...

US won't speed up emissions cuts

Domestic politics will not allow the United States to deepen it commitment for cutting carbon pollution over the next decade despite growing international pressure, Washington's top climate negotiator said Sunday.

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