Length 29:32 CBS Evening News with Walter Cronkite April 3, 1980 – why coal burning and other greenhouse gases could lead to a warming planet Walter Cronkite CBS News Global Warming Apr 3, 1980
Watch on Video Length 0:24 CBS Evening News with Walter Cronkite, September 11, 1972 – Warned of ‘New Ice Age’ due to global cooling Walter Cronkite CBS News Global Cooling Sep 11, 1972
Length 29:32
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