Environment & Ecology · Environment

The atmospheric concentration of CO2 rose from about 285 ppm in 1850 to 390 ppm in 2010. If emissions continue under high-emission scenarios, climate models project that atmospheric CO2 could rise to around ppm by 2050 and exceed ppm by 2100.

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Correct answer

560 ppm ; 1390 ppm

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The atmospheric concentration of CO2 rose from about 285 ppm in 1850 to 390 ppm in 2010. If emissions continue under high-emission scenarios, climate models project that atmospheric CO2 could rise to around ________ ppm by 2050 and exceed ________ ppm by 2100.