Warming effect of greenhouse gases has increased by 43%: UN
Concentration of CO2 rose from 405.5 ppm in 2017 to 407.8 ppm in 2018. Since 1990, warming effect of greenhouse gases surged by 43%, as per WMO annual Greenhouse Gas Bulletin. The increase above annual average increase of 2.06 ppm over the past decade
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World Meteorological Organization HQ: Geneva, Switzerland