Scientists discover rising heat leaves trees struggling to turn sunlight into energy: 57 million hectares of tropical forests already affected; Heat waves goes beyond photosynthesis limits

Rising global temperatures are pushing millions of hectares of tropical forests beyond the heat levels where trees can efficiently carry out photosynthesis, according to a study published in PNAS. Researchers found that 57 million hectares have already crossed critical heat thresholds, raising concerns over forests ability to absorb carbon and support biodiversity.

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