Rising heat leaves 57M hectares of tropical forests unable to photosynthesise efficiently

Tropical forests that are known to be the lungs of our planet face another challenge as global warming forces them out of their climatic comfort zones. According to the study published in the Proceedings of the National Academy of Sciences (PNAS), millions of hectares of tropical forests experience temperatures that interfere with the process of photosynthesis that enables trees to grow and take in carbon dioxide. According to Down To Earth, millions of hectares of tropical forests have already passed critical heat thresholds due to the work conducted by scientists at the École Polytechnique Fédérale de Lausanne (EPFL). Let us list seven interesting points about the study mentioned above.Trees have reached their heat limitsTrees, just like people, cannot tolerate extreme heat. Researchers clarify that plants cannot effectively use the process of photosynthesis outside the certain range of temperatures.