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WMO report on Carbon dioxide emissions in 2020

Context:

A report from the World Meteorological Organisation (WMO) said 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 last decade.

Relevance:

GS-III: Environment and Ecology (Environmental Pollution and Degradation, Conservation of Environment and Ecology)

Dimensions of the Article:

  1. World Meteorological Organisation (WMO)
  2. About the WMO report on Carbon dioxide emissions in 2020

Click Here to read about World Meteorological Organization (WMO)

About the WMO report on Carbon dioxide emissions in 2020

  • The WMO report shows that the Carbon dioxide emissions in 2020 were higher than the average annual growth rate over the last decade – despite the approximately 5.6% drop in fossil fuel CO2 emissions in 2020 due to restrictions related to the pandemic.
  • 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 last decade.
  • For nitrous oxides also, the increase was higher and also than the average annual growth rate over the past 10 years.
  • The National Oceanic and Atmospheric Administration (NOAA) Annual Greenhouse Gas Index (AGGI) shows that from 1990 to 2020, radiative forcing by long-lived greenhouse gases (LLGHGs) increased by 47%, with CO2 accounting for about 80% of this increase.
  • Concentration of carbon dioxide (CO2), the most significant greenhouse gas, reached 413.2 parts per million in 2020 and is 149% of the pre-industrial level.
  • Methane (CH4) is 262% and nitrous oxide (N2O) is 123% of the levels in 1,750 when human activities started disrupting earth’s natural equilibrium.
  • The amount of CO2 in the atmosphere breached the milestone of 400 parts per million in 2015. And just five years later, it exceeded 413 ppm.

-Source: The Hindu

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