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Global carbon dioxide emissions recovered to record highs in 2021.

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Global energy-related carbon dioxide emissions will increase by 6% in 2021 363 as the global economy recovers significantly from the COVID-19 crisis and relies heavily on coal to drive its growth, according to a new IEA analysis. It became 100 million tons. Released today.


Increase in global CO2 Emissions in excess of 2 billion tonnes were the highest in absolute history, more than offsetting the pandemic decline of the previous year, according to IEA analysis. The recovery in energy demand in 2021 is due to bad weather and energy market conditions, especially Natural gas price—Nevertheless, more coal was burned Renewable energy Record the largest growth ever.

Global CO2 Emissions and energy demand figures are based on the IEA’s detailed regional and fuel analysis, utilizing the latest official national and publicly available energy, economic and meteorological data. ..Combine with Methane emissions Estimates released by the IEA last month and estimates of nitrous oxide and flaring-related CO2 Emissions, a new analysis, shows that overall greenhouse gas emissions from energy rose to record highs in 2021.

The figures reveal that the global economic recovery from the COVID-19 crisis was not the sustainable recovery sought by the IEA’s Managing Director Fatibirol in the early stages of the 2020 pandemic. 2021 is temporary and the accelerated energy transition is contributing to global energy security and lower energy prices for consumers.

Coal accounted for more than 40% of the world’s total CO growth2 Emissions in 2021 reached a record high of 15.3 billion tons. CO2 Emissions from natural gas have recovered to 7.5 billion tonnes, well above 2019 levels. 10.7 billion tons, CO2 Oil emissions remained well below pre-pandemic levels, primarily due to limited recovery in global transport activity in 2021 in the aviation sector.

With renewable energy sources despite the recovery of coal use Nuclear power In 2021, it accounted for more of the world’s electricity generation than coal. Renewable energy-based generation reached record highs, surpassing 8,000 terawatt hours (TWh) in 2021 and 500 TWh above 2020 levels. Wind and solar output increased by 270 TWh and 170 TWh, respectively, but hydropower decreased due to the effects of the drought, especially in the United States and Brazil.

The use of coal for power generation in 2021 was enhanced by record high natural gas prices. The cost of operating an existing coal-fired power plant across the US and many European power systems was significantly lower than the cost of gas power plants for most of 2021.Switching from gas to coal has boosted global CO2 Especially in the United States and Europe, where competition between gas and coal-fired power plants is fierce, power generation emissions far exceed 100 million tonnes.

Global CO rebound2 Emissions above pre-pandemic levels are driven primarily by China, with an increase of 750 million tonnes between 2019 and 2021. China was the only major economy to experience economic growth in both 2020 and 2021. It’s more than offsetting the overall decline in other parts of the world over the same period. In 2021 alone, China’s CO2 Emissions exceed 11.9 billion tons, accounting for 33% of the world total.

The increase in China’s emissions was mainly due to the sharp increase in electricity demand, which relied heavily on coal-fired power. Due to the rapid growth of GDP and the additional electrification of energy services, China’s electricity demand increased by 10% in 2021, faster than 8.4% of economic growth. This increase in demand of about 700 TWh was the largest ever experienced in China. Coal was used to meet more than half of the increase in electricity demand due to demand growth that outpaced the increase in supply from low-emission sources. This is despite the largest increase in renewable energy output to date in 2021.

CO2 India’s emissions recovered significantly in 2021 and exceeded 2019 levels. This is due to the increase in coal usage for power generation. Coal-fired power generation reached a record high in India, 13% above 2020 levels. This is partly due to the slowdown in renewable energy growth to one-third of the average rate seen over the last five years.

World economic output in developed countries recovered to pre-pandemic levels in 2021, but CO2 Emissions do not recover very rapidly, indicating a more permanent trajectory of structural decline. CO2 US emissions in 2021 were 4% below 2019 levels. In the European Union it was 2.4% lower. In Japan, emissions fell 3.7% in 2020 and recovered less than 1% in 2021.

CO on a per capita basis2 Emissions in developed countries have dropped to an average of 8.2 tonnes, now below China’s average of 8.4 tonnes, but significant differences remain between developed countries.


After an unprecedented decline in 2020, global emissions have almost returned to pre-pandemic levels.


For more information:
report: www.iea.org/reports/global-ene…-emissions-in-2021-2

Provided by IEA

Quote: Global carbon dioxide emissions recovered to record highs in 2021 (March 8, 2022). Obtained March 8, 2022 from https: //phys.org/news/2022-03-global-carbon-dioxide-emissions-rebounded.html.

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Global carbon dioxide emissions recovered to record highs in 2021.

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