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Why global warming could be ‘rewriting race history’ at major marathon events

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By George Ramsay, CNN (CNN) — Runners already face a daunting challenge when they line up at the start of a marathon, but they might increasingly find themselves with another obstacle to reckon with: global warming. A new study claims that rising temperatures around the world will make it harder for elite athletes to break the marathon world record, or for recreational runners to hit their target times. Of the 221 races analyzed in the report fr…

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Why global warming could be ‘rewriting race history’ at major marathon events

Runners already face a daunting challenge when they line up at the start of a marathon, but increasingly they might find themselves with another obstacle to reckon with: global warming.

1 day ago·Atlanta, United States

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