12/7/2023 0 Comments Carbon emissions by transport typeA full recovery of global transport activity would push oil-related emissions above 2019 levels and increase global CO2 emissions by over 1.5%, well above 2019 levels. CO2 emissions from international aviation are set to remain 200 Mt CO2 (or one-third) below pre-pandemic levels in 2021, while emissions from road transport and domestic aviation are on track to be close to 350 Mt CO2 (or 5%) below 2019 levels in 2021. The likely partial recovery is entirely due to the continued impacts of the Covid‑19 pandemic and related restrictions on transport activity in 2021. Even with an increase in CO2 emissions from oil of over650 Mt CO2 in 2021, oil-related emissions are expected to recover only around half of the 2020 drop and thus should remain 500 Mt CO2 below 2019 levels. Global CO2 emissions rebound by nearly 5% in 2021, approaching the 2018-2019 peakĭespite global economic activity rising above 2019 levels in 2021 and global energy demand rebounding above 2019 levels, we do not anticipate a full return of CO2 emissions to pre-crisis levels. The increase of over 1 500 Mt CO2 would be the largest single increase since the carbon-intensive economic recovery from the global financial crisis more than a decade ago, it leaves global emissions in 2021 around 400 Mt CO2, or 1.2%, below the 2019 peak. In 2021 global energy-related CO2 emissions are projected to rebound and grow by 4.8% as demand for coal, oil and gas rebounds with the economy. Despite the decline in 2020, global energy-related CO2 emissions remained at 31.5 Gt, which contributed to CO2 reaching its highest ever average annual concentration in the atmosphere of 412.5 parts per million in 2020 – around 50% higher than when the industrial revolution began. CO2 emissions fell further than energy demand in 2020 owing to the pandemic hitting demand for oil and coal harder than other energy sources while renewables increased. Global CO2 emissions declined by 5.8% in 2020, or almost 2 Gt CO2 – the largest ever decline and almost five times greater than the 2009 decline that followed the global financial crisis.
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