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A farmworker picks grapes on October 4, 2021, in the Kern County town of Lamont, California, where record heat has fuelled drought and wildfires. - Irma Gomez has worked in California's Central Valley, one of the world's most productive agricultural regions, for nearly a decade -- but she has never experienced a year as hot as this one, so hot that a colleague collapsed and died in the field. Rising temperatures are increasingly threatening workers in the United States, endangering their health as well as their performance. And that has major economic consequences for the entire country, according to two recent studies. (Photo by Frederic J. BROWN / AFP) (Photo by FREDERIC J. BROWN/AFP via Getty Images)

A farmworker picks grapes on October 4, 2021, in the Kern County town of Lamont, California, where record heat has fuelled drought and wildfires. - Irma Gomez has worked in California's Central Valley, one of the world's most productive agricultural regions, for nearly a decade -- but she has never experienced a year as hot as this one, so hot that a colleague collapsed and died in the field. Rising temperatures are increasingly threatening workers in the United States, endangering their health as well as their performance. And that has major economic consequences for the entire country, according to two recent studies. (Photo by Frederic J. BROWN / AFP) (Photo by FREDERIC J. BROWN/AFP via Getty Images)
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AFP FREDERIC J. BROWN