"Global climate change is a serious problem calling for immediate national action," read a petition in the Wall Street Journal signed by prominent economists. "A carbon tax offers the most cost-effective lever to reduce carbon emissions at the scale and speed that is necessary."
Others disagree, including Dr. Craig Idso of the Center for the Study of Carbon Dioxide and Global Change, who states that “atmospheric CO2 is not pollution and is not causing dangerous global warming." Idso views rising atmospheric CO2 as “the elixir of life” in light of the many benefits it is providing to both natural and managed ecosystems.
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Debate: There is little or no rigorous evidence that rising concentrations of carbon dioxide are causing dangerous global warming and threatening life on the planet.
