At the top and bottom of the planet, the seasons arrive on a schedule all their own. Satellite data from a mission measuring infrared energy reveal just how differently—and how dramatically—surface temperatures swing across two full years at the poles. In this animation, surface temperatures across the Arctic and Antarctic pulse between cold (dark blue)
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It’s still relatively early in the summer season in the Northern Hemisphere, but several parts of North America were stiflingly hot in mid-July. The latest provider of heat was a strong high-pressure ridge that remained in the upper atmosphere over the northern Rockies on the weekend of July 11-12, 2026. This pushed hot air toward
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