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On Jul 2, 2012, at 11:12 AM, Ken Hiebert wrote:
1. Can climate scientists say with any degree of certainty that the unusual weather currently happening in the U. S. is the result of global warming, more particularly global warming caused by human actions?
Climate scientists can and do say with absolute certainty that any single complex event (like "unusual weather") is the result of numerous concrete factors and therefore cannot be called *the* result of some one, even general, condition. They can also say with absolute certainty that global warming has as a result the increased *probability* of the sort of "unusual weather currently happening in the U. S.," and they can also say with the same degree of certainty that human actions--specifically industrial and agricultural emissions of heat-trapping gasses into the atmosphere--are at least a major, and the only known, factor responsible for global warming.
Shane Mage This cosmos did none of gods or men make, but it always was and is and shall be: an everlasting fire, kindling in measures and going out in measures. Herakleitos of Ephesos ________________________________________________ Send list submissions to: Marxism@greenhouse.economics.utah.edu Set your options at: http://greenhouse.economics.utah.edu/mailman/options/marxism/archive%40mail-archive.com
