The link between rapid climate change and human extinction is basically this: the planet becomes uninhabitable by humans if the average temperature goes up by 4-6°C. It doesn’t sound like a lot because we’re used to the temperature changing 15°C overnight, but the thing that is not mentioned enough is that even a 2-3°C average increase would give us temperatures that regularly surpass 40°C (104°F) in North America and Europe, and soar even higher near the equator. Human bodies start to break down after six hours at a wet-bulb (100% humidity) temperature of 35°C (95°F). This makes the 2003 heat wave in Europe that killed over 70,000 people seem like not a very big deal. Factoring in the increase we’re already seeing in heat waves, droughts, wildfires, massive storms, food and water shortages, deforestation, ocean acidification, and sea level rise some are seeing the writing on the wall: We’re all gonna die! carolynbaker.net/2013/08/24/some-credible-scientists-believe-humanity-is-verrry-close-to-destruction/
Posted on: Sat, 31 Aug 2013 02:48:44 +0000
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