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Tropical Rainforests

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Tropical Rainforests at Risk: Global Warming Threatens Photosynthesis
environment2 years ago

Tropical Rainforests at Risk: Global Warming Threatens Photosynthesis

Rising temperatures pose a specific threat to tropical rainforests as leaves are unable to photosynthesize when temperatures reach 116°F, according to a report published in Nature. This failure in photosynthesis could have severe consequences for the world's forests, which play a crucial role in sustaining life and regulating the global climate. Currently, only 0.01% of leaves are passing the critical temperature threshold, but this percentage is expected to increase as temperatures continue to rise due to global warming. If temperatures exceed a threshold of 7.2°F, the percentage of leaves failing to photosynthesize could rise to 1.4%, potentially leading to significant leaf loss and tree death.

Tropical Rainforests at Risk: Photosynthesis Threatened by Rising Temperatures
environment2 years ago

Tropical Rainforests at Risk: Photosynthesis Threatened by Rising Temperatures

Some leaves in tropical rainforests are reaching temperatures that are too hot for photosynthesis, according to a study. The ability of leaves to photosynthesize begins to fail when their temperature reaches around 46.7 degrees Celsius (116 Fahrenheit). Currently, only 0.01% of leaves are passing this critical temperature threshold, but as the world warms, this percentage is expected to increase, posing a threat to tropical forests. These forests cover roughly 12% of the planet, hold more than half of the world's species, and play a crucial role in carbon storage and climate regulation. If global warming exceeds 4 degrees Celsius, the amount of leaves surpassing critical temperature thresholds could rise to 1.4%, potentially causing large-scale leaf loss and tree death.