The late Stephen Schneider often referred to the "great uncontrolled experiment" that humans are conducting on the only planet that we know is capable of supporting human life. It is a multivariable experiment that will likely yield feedback effects, nonlinear responses, and surprises -- and nobody is in charge of the experiment, and nobody knows just how to stop it. It was not an original observation;
he credits a 1957 article for first remarking on it:
Quote:
In 1957, Revelle and Suess [R. Revelle and H. Suess, Tellus 9, 18 (1957)] pointed out that we were undergoing a great "geophysical experiment."
I think a little work might trace it back further, perhaps to Arrhenius or to Vladimir Vernadsky and Teilhard de Chardin.
Scientists have recognized for a long time that humanity is having great effects on our earth and the global biogeochemical systems that make all life possible. That was observed in the centuries before scientific method became our most important way of knowing. In
Critias, written in the 4th century BCE, Plato observed
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And so, like it is on the small islands, our recent land has become looking like bones of a sick body if compared with the former times: all the fat and soft land has come down and the bold skeleton remained only. In those past times our land was intact, with high hills, and the so called now stony plains had an abundant lush land, the mountains were covered by broad forests. (…) Among our mountains there are such which now feed bees only, but still roofs made of trees cut not very long time ago are preserved there (…), and the land was giving unbelievably rich pasture to the flocks. The water which Zeus was sending was a fruitful one, not like now when it is fading away with no use, flowing to the field out of the bold land.
Attachment:
Plato's hills.jpg
Steve was probably our best representative to the portion of the public that was willing to listen and learn about the environmental changes now underway. He survived a bout of lymphoma and then died of a heart attack while disembarking at Heathrow. No one has replaced him.