The strong 2023-24 El Niño is over. Based on past events, does a strong El Niño portend a strong La Niña? Maybe, but it's complicated.
You should, too.
We probably have El Niño to thank.
From record-high summer heat to the greening of the Arctic, this collection of images highlights several key "vital signs" of the Arctic.
An explainer about the international climate meeting known as “COP.”
Watch this space! Next week, in partnership with experts from NOAA Chemical Sciences Lab and the Climate Prediction Center, we're launching a blog about the behavior—and sometimes misbehavior—of the stratospheric polar vortex.
Early development of the ozone hole was moderated by active weather that mixed in ozone-rich air from lower latitudes.