| http://www.w3.org/ns/prov#value | - Jim Davidson says: February 20, 2014 at 11:41 am The authors say: ??? CO2 in the atmosphere is a greenhouse gas, trapping heat before it can escape into space.??? There has always been CO2 in the atmosphere, and in ancient times there was a lot more CO2 in the atmosphere than there is now and if this ???trapped??? the heat of the Earth,( which comes from the Sun,) and had done since the Earth was
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