Philip Stott runs one of the better debunking sites on eco-hysteria, called Anti-Ecohype. He most often sets his sights on global warming hogwash and anti-biotech luddism. Stott's site is a little primitive-looking, but the information is top-notch stuff from a real professional scientist: He's Emeritus Professor of Biogeography at the University of London and editor of the Journal of Biogeography published out of Oxford. Two of his better articles can be found at Tech Central Station:

Global Warming Myths vs. Empericism.

Damage caused by Kyoto.

The first is on global warming nonsense in general, and the second is on specific environmental and economic problems that the Kyoto protocols are already wreaking on the UK.