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28 March, 15:01

How many times larger is the co2 concentration in 2018 compared to Pre-industrial times?

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  1. 28 March, 16:00
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    The concentration of carbon dioxide (CO2) in Earth's atmosphere is approaching 397 ppm (parts per million) by volume as of May 2012 and rose by about 2.0 ppm/yr during 2000â€"2009. This current concentration is substantially higher than the 280 ppm concentration present in preindustrial times, with the increase largely attributed to anthropogenic sources.
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