Global CO2 emissions from burning fossil fuels are expected to hit a record high in 2023, which may exacerbate climate change and lead to more extreme weather, Reuters reported, citing the Global Carbon Budget study.

Published during the COP28 climate summit, the report said that the CO2 emissions, which reached a record high last year, tended to stay at high levels this year due to declining deforestation.

Global CO2 emissions from burning fossil fuels are expected to reach 36.8 billion tonnes this year, increasing 1.1% compared to 2022. And the overall including land use emissions are forecast to reach 40.9 billion tonnes, report showed.

Global emissions from coal, petroleum and gas all rose.

However, the world's goal of limiting the temperature rise exceeding 1.5 degrees Celsius above pre-industrial levels is slipping further away with rebounded carbon emissions.

"It now looks inevitable we will overshoot the 1.5C target of the Paris Agreement," said Professor Pierre Friedlingstein, the research leader. And he also claimed that leaders must agree on rapid cuts in fossil fuel emissions to keep temperature rise below 2 degrees Celsius.

Intergovernmental Panel on Climate Change (IPCC) said that global carbon emissions must have to fall dramatically by 43% to meet the 1.5 degree Celsius target by 2030. However, global emissions now increase 1.4% from pre-pandemic levels.

China's greenhouse gas emissions could start to enter a "structural decline" as early as next year as renewable energy installations hit record high, showed researchers of Centre for Research on Energy and Clean Air (CREA).

And carbon emissions from fossil fuels in China accounted for approximately 31% of the global emissions, CREA data showed.

(Writing by yan.sun  Editing by Emma Yang)
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