Overall, mostly due to the COVID-19 pandemic and associated restrictions, energy-related CO2 emissions decreased by 11% in the US in 2020.
Transportation sector: Petroleum, which typically accounts for the majority of CO2 emissions in transportation, experienced a 15% decrease in emissions compared to 2019.
Commercial sector: CO2 emissions associated with energy use fell overall by 12%, with emissions from commercial electricity down by 13%, commercial petroleum down by 13%, and natural gas by 11%.
Industrial sector: Energy-related CO2 emissions fell by 8% overall, with coal emissions down 15%, electricity by 15%, petroleum by 8%, and natural gas by 2%.
Residential sector: CO2 emissions associated with energy use in the residential sector declined by 6% in 2020, with residential petroleum emissions down by 11%, natural gas by 7%, and electricity by 5%.
Residential petroleum emissions fell by 11%, natural gas by 7%, and electricity by 5%.
Within the U.S. power sector, emissions from coal declined the most, at 19%. Natural gas-related CO2 rose by 3%.
In 2020, as fossil fuel generation declined, generation from renewables continued to grow. Generation from wind and solar together increased by 17% in 2020
U.S. Energy Information Administration