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Want to Understand This Summer's Heat? Imagine 800,000 Hiroshima Atom Bombs Exploding Every Day

That unimaginable amount of energy is why July was the hottest month on record, and why 2023 may rank as warmest year.

The first atomic bomb was exploded at the Trinity test site on July 16, 1945 at 5:29:45 a.m. This photo shows the explosion at just .025 milliseconds into the blast. The explosive yield was equivalent to 21,000 tons of TNT. To learn about the connection between atom bombs and global heating, see the story below.Credit: U.S. Dept. of Defense. Colorization of original black and white photo by Tom Yulsman

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You likely don't need me to tell you that in most places, July was frightfully warm. But compared to previous July's, just how bad was it?

An analysis released by NASA has just answered this question: Last month was unlike any of the previous 1,716 months in the agency's climate records. And it wan't even close.

“This July was not just warmer than any previous July – it was the warmest month in our record, which goes back to 1880," says Gavin Schmidt, director of NASA's Goddard Institute for Space Studies, or GISS.

Global temperature anomalies for every July since the 1880s, based on NASA's GISTEMP analysis. Anomalies reflect how much the global temperature was above or below the 1951-1980 norm for July. (Credit: NASA’s Goddard Institute for Space Studies)

NASA’s Goddard Institute for Space Studies

NOAA's independent assessment found essentially the same thing. As the agency put it in ...

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