Comment

Caltech Study: CO2 At Highest Level in 15 Million Years

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so.cal.swede10/20/2009 8:42:29 am PDT

re: #217 freetoken

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?

Because of the greenhouse effect and because of the massive bodies of water on earth.