According to the World Meteorological Organization’s (WMO) Greenhouse Gas Bulletin, carbon dioxide (CO2) concentrations in 2020 were 149% higher than pre-industrial levels, another annual record.
“The Greenhouse Gas Bulletin has a clear, scientific message for climate change negotiators at COP26. At the current rate of increase in greenhouse gas concentrations, we will see temperatures rise far beyond the Paris Agreement targets by the end of this century. Pre-industrial 1.5 to 2 degrees Celsius above levels,” said WMO Secretary General Petri Talas.
“We’re out of the way.”
The amount of CO2 in the atmosphere exceeded 400 parts per million in 2015 and continues to increase rapidly.
“Carbon dioxide remains in the atmosphere for centuries and even longer in the ocean. The last time Earth experienced comparable concentrations of CO2 was 3-5 million years ago, when temperatures were 2-3°C warmer and sea level It was 10-20 meters higher than now. But then there weren’t 7.8 billion people.”
Methane and nitrous oxide levels were also at record high levels, 262% and 123%, respectively, in 1750, before the Industrial Revolution began the centuries-long process of human dissolution of Earth’s atmosphere.
“Greenhouse gas measurement is like slipping into a car accident. Disaster comes closer and closer but you can’t stop it,” Euan Nisbet of the Greenhouse Gas Group at the Royal University told the Science Media Center.
Dave Ray, director of the Edinburgh Climate Change Institute, said the success or failure of COP26 “will be written off as the greenhouse gas concentrations in our skies.”
“This new WMO report provides a brutally clear assessment of what’s been written out there. So far, it’s been an epic failure,” he said.
“The short window of opportunity to stabilize greenhouse gas concentrations at a level that meets the Paris climate goals is about to disappear.”
COP26 was initially billed as a generation-by-generation opportunity to unite global efforts to fight climate change and commit the world to stronger emissions pledges. But the conference has been shrouded in uncertainty in recent weeks, with several key leaders yet to confirm their attendance and with rising cases of Covid-19 in the United Kingdom raising questions about whether the event will go ahead as planned. could.
Credit : www.cnn.com