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Quote by Walter Cunningham

“... The reality is that atmospheric CO2 has a minimal impact on greenhouse gases and world temperature. Water vapor is responsible for 95 percent of the greenhouse effect. CO2 contributes just 3.6 percent, with human activity responsible for only 3.2 percent of that. That is why some studies claim CO2 levels are largely irrelevant to global warming.”

Quote by Walter Cunningham

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Walter Cunningham
Walter Cunningham

Walter Cunningham is an American astronaut born on March 16, 1932. He participated in NASA's Apollo program in the 1960s and served as the command module pilot of Apollo 7, the first human mission to orbit the Moon. more

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