The necessity of pulling carbon dioxide out of the air - Climate change

But it is difficult to do at the scale you need

“... almost every year since Rio has seen higher carbon-dioxide emissions than the year before. A staggering 50% of all the carbon dioxide humankind has put into the atmosphere since the Industrial Revolution was added after 1990. And it is this total stock of carbon that matters. The more there is in the atmosphere, the more the climate will shift—though climate lags behind the carbon-dioxide

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