While humanity grappled with the deadliest pandemic in a century, many metrics of the planet’s health showed catastrophic decline in 2020. Average global temperatures rivaled the hottest. Mysterious sources of methane sent atmospheric concentrations of the gas spiking to unprecedented highs. Sea levels were the highest on record; fires ravaged the American West; and locusts swarmed across East Africa.
These findings may sound familiar, coming on the heels of a similarly dire assessment from the United Nations Intergovernmental Panel on Climate Change. And they echo NOAA’s report from last year, which also detailed record-high greenhouse gas levels and unprecedented warmth.
“It’s a record that keeps playing over and over again,” said Jessica Blunden, a NOAA climate scientist who has co-led “State of the Climate” reports for 11 years. “Things are getting more and more intense every year because emissions are happening every year.”