2020 tied with 2016 to become the warmest year on record, according to new data from the Copernicus Climate Change Service of the European Union. This discovery comes despite the cooling effect of La Niña and shows the profound impact of global warming. A cold December "prevented 2020 from becoming the new stand-alone warmest year." The data reminds us that human-induced climate change continues. The Arctic and northern Siberia recorded the highest warming.