TNPSC Thervupettagam

Mass leaf death

August 31 , 2023 324 days 325 0
  • A recent study published in the Nature journal highlights new dangers posed by climate change to tropical forests.
  • The study suggests that rising temperatures could lead to a phenomenon known as “mass leaf death”.
  • This detonates that the leaves of tropical trees die or cease photosynthesis due to extreme heat.
  • Even small temperature changes brought on by climate change could significantly impact plant species.
  • The study found that some tropical regions have experienced an average temperature increase of 0.5 degrees Celsius per decade.
  • If individual leaf temperatures surpass a critical threshold (around 46.7 degrees Celsius), photosynthesis stops, and leaves may die if the exposure to such temperatures is prolonged.
  • The study warns that prolonged heat exposure could lead to the collapse of tropical forests.

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