Jake Keister
May 12, 2025

In 2023, global temperatures spiked in a way that puzzled scientists, sparked headlines, and led many people to wonder whether the climate was entering an unpredictable new phase. The spike stood out so dramatically that some called it mysterious or unprecedented.

But the spike wasn't so mysterious for Shiv Priyam Raghuraman, a professor in the Department of Climate, Meteorology & Atmospheric Sciences at the University of Illinois. It signaled a familiar rhythm in our planet’s climate system.

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