Study predicts mass extinction of marine life if global warming continues | BR Shenoy
“Exactly where the future stands between the best and worst scenarios will be determined by the choices society makes not only on climate change, but also on habitat destruction, overfishing and coastal pollution. ” —scientists Malin Pinsky and Alexa Fredston in a comment on the new study, also published in Science.
According to a new study published on April 28 in the journal ScienceTitled “Avoiding mass ocean extinction due to climate warning,” researchers describe how marine species face “special risks” from climate change, as sea temperatures steadily rise due to additional heat created by burning fossil fuels.
The researchers created simulations of future marine biodiversity under various climate scenarios.
According to the authors of the paper, Justin Penn and Curtis Deutsch of the University of Washington and Princeton University, as greenhouse gas emissions continue to rise, contributing to ever-increasing waters hot and oxygen depletion, less cash can survive.
If humanity reduce greenhouse gas emissions by 2300life in the oceans will face a mass extinction comparable to the great extinctions of Earth’s distant past.
The “great death”, which has occurred 250 million years ago, was precipitated by warming and oxygen depletion.
More … than two-thirds marine animals have died from these conditions, and researchers say the situation is similar today.
human activity as overfishing and Pollutionis widely regarded as the primary cause loss of marine biodiversity – but the heat of climate change alone is enough to cause a mass extinction in 2100.
They predict that tropical oceans will lose many species, many of which will be forced to migrate to higher latitudes to survive.
Polar species, on the other hand, would disappear.
There is still some hope. Researchers believe that limiting global warming to of them degrees Celsius above pre-industrial levels could prevent such a disaster for up to 70%.
Current projections show that if no action is taken, global warming will reach 1.5 degrees Celsius at the start 2030s.
According to UN climatologists, the preferred objective of limiting global warming to 1.5 degrees Celsius is inaccessible with current international commitments.
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