NCPA - National Center for Policy Analysis


January 2, 2009

Skeptics have long argued that there are other explanations for climate change other than man-made CO2.  As Christopher Booker explains, there are many arguments put forward by those who believe that global warming is all a hoax:

  • Temperatures are falling, not rising: Last winter, the northern hemisphere saw its greatest snow cover since 1966; this winter is predicted to be even worse.
  • The earth was hotter 1,000 years ago: Research shows that temperatures were higher in what is known as the Medieval Warming period than they were in the 1990s.
  • The earth's surface temperature is not at record levels: According to NASA's Goddard Institute for Space Studies, surface air temperature measurements show that December 2007 to November 2008 was the coolest year, and that the hottest decade was the 1930s, not the 1990s.
  • Ice is not disappearing: According to the Web site Crysophere Today, Arctic ice volume was 500,000 square kilometers greater than this time last year; additionally, Antarctic sea-ice reached its highest level this year since satellite records began in 1979.
  • Himalayan glaciers: The UN Environmental Program reported that the cause of melting glaciers in the Himalayas was not global warming but the local warming effect of a vast "atmospheric brown cloud" over that region made up of soot particles resulting from Asia's increased burning of fossil fuels and deforestation.
  • Temperatures are still dropping: NASA satellite readings on global temperatures show that August was the fourth month in 2008 when temperatures fell below their 30-year average since satellite records began.

Source:  "Global Warming:  Reasons Why it Might Not Actually Exist," Telegraph, December 30, 2008.

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