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Caltech Study: CO2 At Highest Level in 15 Million Years

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Love-Child of Cassandra and Sisyphus10/20/2009 12:29:02 am PDT

re: #215 Captain America 1776

And consequently, a period in Earth’s past in which the mean temperature was usually much warmer that in recent times.

I go back to my usual question in circumstances such as these: do you know why the Earth and Moon have different average temperatures, though each receives the same level of sunlight?