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Climate Change
ATMOSPHERIC CO2 REACHES HIGHEST LEVEL IN MORE THAN 4 MILLION YEARS
by Earth.Org Africa Americas Asia Europe Oceania Jun 9th 20212 mins
Earth.Org is powered by over 150 contributing writers
Atmospheric carbon dioxide (CO2) has reached its highest level in at least 4.5
million years; it is now at 419 ppm, which is driving dangerous heating around
the world.
—
What is Happening?
* Modern measurements of CO2 began in 1958, and levels were at 316ppm. 300
years ago, before the beginning of the industrial age, that number was at 280
ppm.
* This shows that as a result of burning fossil fuels and cars, humanity has
increased concentrations of the most important greenhouse gas by 50%.
* Atmospheric CO2 has risen every year since monitoring began.
* Two organisations have kept the historical record of atmospheric CO2 since
1958. The Scripps Institution of Oceanography pioneered the practice when
climate scientist Charles David Keeling set up his equipment on Hawaii’s
Mauna Loa volcano. The National Oceanic and Atmospheric Administration (NOAA)
followed in 1974.
* Unfortunately, while COVID-19 related lockdowns and economic slowdowns
reduced emissions significantly in 2020, it had little effect on the
trajectory of CO2. The May average rose by 1.8 ppm over May 2020, slightly
less than the annual growth rate for 2017 and 2011.
* CO2 levels aren’t determined solely by pollution, but also depend on
variations in the rate that oceans and plants soak up CO2. The atmospheric
concentration follows a seasonal cycle, peaking typically in May, when plants
in the Northern Hemisphere- where most of them live- begin drawing CO₂ into
tissue.
Ralph Keeling, a geochemist at Scripps and son of the scientist who launched
measurements in 1958, says, “the ultimate control knob on atmospheric CO₂ is
fossil-fuel emissions, but we still have a long way to go to halt the rise, as
each year more CO₂ piles up in the atmosphere. We ultimately need cuts that are
much larger and sustained longer than the COVID-related shutdowns of 2020.”
You have a choiceTake action and strive for a better future
JOIN THE GLOBAL MOVEMENT
The Climate Crisis is startingTake a Positive Action Today
JOIN THE GLOBAL MOVEMENT
Take Action as a Global CitizenJoin the Global Movement
THE PLANET NEEDS YOU!
We need a billion activistsTo achieve societal change
JOIN THE MOVEMENT TODAY
Join us in the fight for a Thriving PlanetIt's not too late to take action
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children
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Governments are failing usThey do not plan for the long term
THE MOVEMENT FIGHTS FOR CHANGE!
Governments are failing usJoin us in the fight for change
JOIN THE MOVEMENT TODAY
You might also like: Atmospheric Methane Levels See ‘Record’ Surge
* Data released in April 2021 by the NOAA found that methane levels in the
atmosphere saw a record surge during 2020, marking the biggest increase since
records began in 1983. Methane concentrations rose by 14.7 parts per billion
in 2020.
Tagged:
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