| http://www.w3.org/ns/prov#value | - warming was due to human activity, particularly the CO2 emissions resulting from the burning of coal, oil and gas.The change means that scientists have moved from being 90 percent sure to 95 percent ??? about the same degree of certainty they have that smoking kills.At 90 percent it means there is a 10 percent probability that it is not entirely correct, said Chris Field, Carnegie Institution sc
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