Trying to decide about global warming

The facts about global warming are as follows:

  • Carbon dioxide, methane and other greenhouse gasses have the chemical property of being transparent to visible light, but translucent to infrared radiation (radiant heat).  The higher the concentration of these greenhouse gasses in the atmosphere, the more of the earth’s heat will be reflected back into their earth.
  • Concentrations of greenhouse gasses are rising steadily.  So are recorded temperatures.  There are other things that are known to affect global temperatures, but they all are cyclical.  The greenhouse effect will increase without limit, unless either human beings decide to set a limit or a crash in the global economic or ecological system sets a limit for us.

Click on Why Global Warming Skeptics Are Wrong for an article by William D. Nordhaus, Sterling professor of  economics at Yale University, in the New York Review of Books.  [Added 2/28/12]

Click on Climate Change: the Evidence for a summary of the evidence from the National Aeronautics and Space Administration.

Click on State of the Climate for the latest report of the National Climate Data Center of the National Oceanic and Atmospheric Administration.

Click on Michael E. Mann’s The Hockey Stick and the Climate Wars for an account of one scientist’s battle with climate change deniers.

Click on Hockey stick controversy wiki for a Wikipedia article about the “hockey stick” graph of global temperature change.

Click on xkcd for more cartoons.


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