Early-season 2023 wildfires generated record-breaking surface ozone in the Upper Midwest

Heat waves happen at the bottom of the ocean too

Greenhouse gas pollution trapped 49% more heat in 2021 than in 1990, NOAA finds

Dangerous humid heat extremes occurring decades before expected

Carbon dioxide peaks near 420 parts per million at Mauna Loa observatory

Research by NOAA shows that warming of the Indo-Pacific Ocean is altering rainfall patterns from the tropics to the United States, contributing to declines in rainfall on the United States west and east coasts

Heat waves could increase substantially in size by mid-century