Not available at the moment <a href=" http://www.march4freedom.org/tag/the-spectator-zenawi/ ">letairis and revatio</a> Penn State’s Michael Mann – who authored the famous “hockey stick†graph showing a stunning rise in temperatures in the late 20th century – believes this latest IPCC report only confirms what he has been arguing for years. That the Earth is warming, and humans are to blame.
