According to NOAA, With a slightly cooler end to the year, the year 2020 secured the rank of second warmest year in the 141-year record, with a global land and ocean surface temperature departure from average of +0.98°C (+1.76°F). This value is only 0.02°C (0.04°F) shy of tying the record high value of +1.00°C (+1.80°F) set in 2016 and only 0.03°C (0.05°F) above the now third warmest year on record set in 2019. The seven warmest years in the 1880–2020 record have all occurred since 2014, while the 10 warmest years have occurred since 2005. Right now scientists predict a critical environmental tipping point of +2.0o C, which we have been approaching at a faster rate than the original estimates.
And to make matters worse, the Arctic is heating three times faster than the rest of the planet. This not only contributes to sea-level rise, it also threatens Arctic wildlife and creates potential conflicts over rights to the Arctic Ocean by Canada, the United States, Russia, and China.
You can see the latest interactive graphic of the Earth, due to petroleum CO2 and resulting CH4 emissions, since 1880, here.