If you listen to Al Gore only—first off, I pity you—but second, you may not get the whole picture about the environment. REcently, the Senate released a study presenting doubt about man-made global warming:
Over 700 dissenting scientists (updates previous 650 report) from around the globe challenged man-made global warming claims made by the United Nations Intergovernmental Panel on Climate Change (IPCC) and former Vice President Al Gore. This new 2009 255-page U.S. Senate Minority Report — updated from 2007’s groundbreaking report of over 400 scientists who voiced skepticism about the so-called global warming “consensus” — features the skeptical voices of over 700 prominent international scientists, including many current and former UN IPCC scientists, who have now turned against the UN IPCC. This updated report includes an additional 300 (and growing) scientists and climate researchers since the initial release in December 2007. The over 700 dissenting scientists are more than 13 times the number of UN scientists (52) who authored the media-hyped IPCC 2007 Summary for Policymakers.
Check it out here