"In the military, everything is more difficult when it’s summer. And now summer never ends."
While many of these unplanned explosions at munitions sites are later attributed to human error or improper storage, the causes of most are never determined.
But experts interviewed for a new Scientific American investigation blame heat for the phenomenon — and say that global warming could dramatically increase the number of explosions in the future.
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Experts told SA that higher temperatures can weaken the structural integrity of stored military weapons and ammunition. And when SA analyzed data from the arms-monitoring Small Arms Survey, it found that the weapon explosions were about 60 percent more likely to occur between late-April and mid-September — the hottest period of the year.
"As climate change raises summer temperatures and boosts the number and severity of heat waves the world over," SA wrote, "weapons experts warn of more of such unplanned explosions... particularly in places that are already steeped in conflict or have poor stockpile management, or both."
Hotter temperatures don't just affect the explosives directly, either — soldiers told SA the extreme heat of summer causes them to experience "foggy decision-making" that can lead to explosion-causing mistakes.
"In the military, everything is more difficult when it’s summer," an Iraqi artillery officer identified as Ali told SA. "And now summer never ends."
READ MORE: Climate Change May Be Blowing Up Arms Depots [Scientific American]
More on climate change: Pentagon Report Predicts Collapse of US Military Within 20 Years
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