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Global CO2 emissions rebound to near pre-pandemic levels: study

After a dramatic drop during the pandemic lockdowns, carbon dioxide emissions are back to near-record levels. China's share has increased to almost a third of the total, according to researchers.

Thick smoke rises from a power plant at dusk in Dezhou, China's Shandong province, 4 January, 2013.

Fossil fuel emissions will touch 36.4 billion tons of carbon dioxide, only 0.8% below their pre-pandemic high

The gains from last year's drop in carbon emissions are set to disappear as economic activity gathers momentum around the world, according to a study published by the Global Carbon Project on Thursday.

The rebound has mainly been a result of harmful carbon dioxide emitted from coal and gas-fired power plants, the report said.

Researchers said they expected emissions to rise after noticing a dip during the pandemic year, but the increase was "bigger than expected."

"We were expecting to see some rebound. What surprised us was the intensity and rapidity of the rebound," said Pierre Friedlingstein, the main author of the report and a climate modeling researcher at the University of Exeter.

Researchers noted that emissions from coal, oil, and gas fell during the pandemic. But gas emissions increased by 2% and coal emissions by 1% between 2019 and 2021.

The study estimates that in 2021 the world will have spewed 36.4 billion metric tons of carbon dioxide, compared to 36.7 billion metric tons two years ago.

China major emitter

China accounted for the majority of the contribution to global coal and gas emissions, with the country's power sector heavily relying on the sources to generate electricity. 

Xie Zhenhua, a UN climate negotiator and special climate envoy for China, told reporters on Tuesday that China was one of the biggest emitters because it was still a developing economy.

China was also an outlier in 2020 as investments to spur economic recovery from the coronavirus pandemic led to greater usage of coal that year, even as emissions fell in other countries.

Coal energy makes India world’s third biggest polluter

China and India, the world's biggest and third-biggest greenhouse gas emitters, are expected to post higher emissions in 2021 than 2019. The United States and Europe are expected to have slightly lower carbon emissions.

World leaders attend climate summit

The report comes as world leaders attend the 26th edition of the Conference of Parties, COP26, in Glasgow. The UN climate conference has been attended by more than 120 heads of states as they try work out ways to keep temperatures below 1.5 degrees Celsius (2.7 degrees Fahrenheit).

The goal was set as part of the 2015 Paris Climate Agreement and researchers say it is imperative for countries to meet the benchmark to avoid the catastrophic effects of climate change.

World leaders talk change at COP26, activists skeptical

At COP26, India pledged to achieve net-zero emissions by 2070. China submitted documents to reiterate its 2020 pledge of achieving net-zero by 2060, though its president did not attend the summit.

But researchers say countries need to commit even more aggressively since big commitments to reduce emissions still fell short of meeting climate goals.

rm/fb (Reuters, AP, AFP)

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