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WORLD METEOROLOGICAL ORGANIZATION (WMO)’s REPORT ON GREENHOUSE GASES

WORLD METEOROLOGICAL ORGANIZATION (WMO)’s REPORT ON GREENHOUSE GASES

Context:

Emerging greenhouse gases also set a new record last year, with an annual increase in the 2011-2020 average. The practice continued in 2021, according to the World Meteorological Organization (WMO) Greenhouse Gas Bulletin.

Key Highlights:

  • The concentration of carbon dioxide (CO2), the most important greenhouse gas, reached 413.2 million units by 2020 and is 149% pre-industrial level.
  • The increase in CO2 from 2019 to 2020 was slightly lower than that observed from 2018 to 2019 but higher than the average annual growth rate over the past decade.
  • Methane (CH4) is 262% and nitrous oxide (N2O) is at 123% levels by 1750 when human activities begin to disrupt the ecological balance of the earth.
  • For methane, the increase from 2019 to 2020 was higher than that observed from 2018 to 2019 and also higher than the average annual growth rate over the past decade.
  • For nitrous oxides, the increase was higher and also than the average annual growth rate over the past 10 years.
  • The economic downturn from COVID-19 has not had a significant impact on greenhouse gas emissions and growth rates, although there has been a temporary decline in new emissions.

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