Did methane curb ice ages?

May 1991
New Scientist;5/25/91, Vol. 130 Issue 1770, p24
States that the work of three American researchers suggests that methane may have prevented runaway ice ages in the past. Current fears about the greenhouse effect; Work of Charles Paull and William Ussler of the University of North Carolina at Chapel Hill, and William Dillon of the US Geological Survey, Woods Hole; More.


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