What Dave Keeling did ahead of his curve

Excellent background information about our knowledge of the role of CO2 in the atmosphere.

Simple Climate

On 18 May 1955, Charles David Keeling – Dave to most – set up camp near a footbridge over a river in Big Sur State Park in California. Armed with a set of five litre flasks containing nothing but vacuum, he planned to suck up air samples regularly over the 24 hours. At the time it may have seemed the latest uncertain step of a young man unsure how best to combine his interest in science and love of the outdoors. But instead it became the start of a lifelong quest to accurately measure the main gas that man is changing the world’s climate with: CO2.

“At the age of 27, the prospect of spending more time at Big Sur State Park to take suites of air and water samples instead of just a few didn’t seem objectionable, even if I had to get out of a sleeping bag several…

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