CO2、産業化前に比べ43％増

WMO GREENHOUSE GAS BULLETIN The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2014

latest analysis of observations from the WMO Global Atmosphere Watch (GAW) Programme shows that the globally averaged mole fractions of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) reached new highs in 2014, with CO2 at 397.7±0.1 ppm, CH4 at 1833±1 ppb and N2O at 327.1±0.1 ppb. These values constitute, respectively, 143%, 254% and 121% of pre-industrial (1750) levels.

大気中の二酸化炭素量は産業化前の1750年比で2014年では43％増加した。

atmospheric increase of CO2 from 2013 to 2014 was close to that averaged over the past 10 years.

前年(2013年)比では過去10年の平均的な伸び。

The National Oceanic and Atmospheric Administration (NOAA) Annual Greenhouse Gas Index shows that from 1990 to 2014 radiative forcing by long-lived greenhouse gases (LLGHGs) increased by 36%, with CO2 accounting for about 80% of this increase.

大気中に長期滞留する温室効果ガスの放射強制力は1990年比で36％増加。そのうちCO2は80％貢献。
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