Amid a summer of extreme heat across the Northern Hemisphere, an international report led by the U.S. National Oceanic and Atmospheric Administration revealed Wednesday that greenhouse gas concentrations, global sea level, and ocean heat content hit record highs last year.

“This report is a truly international effort to more fully understand climate conditions around the globe and our capacity to observe them,” NOAA National Centers for Environmental Information (NCEI) Director Derek Arndt said of State of the Climate in 2022, which features contributions from more than 570 scientists in over 60 countries.

“It is like an annual physical of the Earth system, and it serves present and future generations by documenting and sharing data that indicate increasingly extreme and changing conditions in our warming world,” Arndt added of the 33rd annual report, published by the Bulletin of the American Meteorological Society.

As humanity continued to extract and burn fossil fuels and engage in polluting agricultural practices, all three of the main atmospheric greenhouse gases—carbon dioxide, methane, and nitrous oxide⁠—reached record concentrations last year. The […]