April 25, 1969 - Keeling says pressured not to talk bluntly about “what is to be done?” - All Our Yesterdays
Fifty four years ago, on this day, April 25, 1969, Dave Keeling gave a speech at the “Symposium on Atmospheric Pollution: Its long-term implications” just over 10 years after he started measuring atmospheric carbon dioxide at Mauna Loa. He was asked to change the title to “Is carbon dioxide from fossil fuel changing man’s environment? […]
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