Early development of the ozone hole was moderated by active weather that mixed in ozone-rich air from lower latitudes.
Out of the 29 Northern Hemisphere summers that led up to a winter El Niño, how many were hot versus cold? Wet versus dry? These maps are a global climate scorecard for the influence of El Niño on June-August climate.
July is the hottest month of the year. How hot might it be in the future?
When forecasters remove the observed trend from sea surface temperatures, the predicted heat wave area drops from 50 percent of the global ocean to 25 percent.
The warm phase of Earth's most powerful natural climate pattern appears to be on its way.
Snow-cover duration continued a longer-term pattern in 2021–22, of significantly faster springtime snowmelt.
Ship traffic is increasing as sea ice dwindles—not just in near-shore, territorial waters of Arctic coastal countries, but increasingly, in the high seas of the Central Arctic Ocean.
The 2022 melt season on the Greenland Ice Sheet started slowly, but ended late, with multiple melt spikes in September.
Arctic temperatures over 2021-22 were the sixth-warmest on record, based on records dating back to 1900.
Consistent with model predictions, a warmer Arctic is increasingly a wetter one.