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carbon dioxide concentrations, Tag
- CO2 levels just reached 410 ppm - the highest in millions of years Mon, 24 Apr 17, 11:36pmRemember when carbon dioxide (CO2) levels in the atmosphere hit a terrifying 400 parts per million (ppm)? That's number's old news now - concentrations just reached 410 ppm for the first time in millions of years...
- Earth's climate hurtling towards warmth unprecedented in nearly half a billion years Thu, 6 Apr 17, 12:56amClimate change is already altering the planet, but the warmth we're headed for may be greater than anything Earth has experienced in around half a billion years...