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248 pages, Paperback
First published October 12, 2012
Back in the age of dinosaurs... from 100 to 200 million years ago temperatures were as much as 10 deg C [18 deg F] warmer than today. Now, that might well have suited a cold-blooded creature like a dinosaur, but heat waves reaching above 50 deg C [122 deg F] would not suit humans. For just one example, there was a severe heat wave in England in 2003. The average summer temperature in southern Englnad is 21 deg C [70 deg F]. For 10 days in early August that year, the maximum temperature was over 32 deg C [90 deg F], with a recored maximum of 38.5 deg C [101 deg F]. During that period 2,139 more poeople died than would normally die, the majority on days of extreme heat. A heat wave in the Cretaceous period would have been much hotter than that--probably around 50 deg C [122 deg F].Well said, Mr. Eggleton. Now, if we can only get more people out there to read those paragraphs.
To say, as some sceptics do, that the world can cope with 10 times as much CO2 as we now have because it did so in the Cretaceous period 100 million years ago ignores a host of issues. Humans were not around then, and the animals that were had evolved to live with that level of CO2. Then, as it slowly declined, so the organisms adjusted--or died.