A computer model based on past mass extinctions predicts the percentages of marine organisms that may be lost in best and worst-case scenarios
Nevertheless, the model suggests marine extinctions will rise gradually alongside ocean warming, passing 10 per cent once around 6°C of warming is reached. After 8°C, the percentage will increase more rapidly, passing 40 per cent at around 14°C of warming.
One key uncertainty is how quickly marine organisms will colonise new habitats. If they move more quickly than in the median scenario, the proportion of species going extinct would remain well below 5 per cent until around 8°C of warming.to show temperature increases of this magnitude are possible. “Under the high-emissions scenario, surface air warming could reach… 10° to 18°C over the next three centuries,” the paper states. However, this high-emissions scenario“We aren’t predicting the future or taking anything as a given,” says Deutsch. “We are saying that still plausible projections of the future will result in a mass extinction. Scenarios that mitigate strongly will avoid that outcome.
Writing in an editorial that accompanies the research, Malin Pinsky at Rutgers University in New Jersey said: “Fortunately, greenhouse gas emissions are not on track for the worst-case scenario. “How close to the best-case scenario human society can hew, however, remains one of the most pressing questions for the future of life in the oceans.”
Canada Latest News, Canada Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
A Major Ocean Current Is at Its Weakest Point in 1,000 YearsNatural variations are currently the main cause, but climate change should continue to cause it to slow down
Read more »
Mass extinction in oceans can be avoided by curbing fossil fuelsIf not slowed, climate change over the next few centuries could lead to marine losses unlike anything Earth has seen in 252 million years, says a new study.
Read more »
India has seen months of extreme heat and this week it will only get hotterOver one billion people will be subjected to excessive heat – 10% of the world’s population, according to Scott Duncan, an extreme climate expert.
Read more »
Nvidia Stock News and Forecast: NVDA stock set for more losses after GOOGL hits tech and NFLX hits subscribersTuesday saw fears mount for the health of the global economy and with a catalyst of geopolitical events in place the scene was set up for another leg
Read more »
Rokita sues Black Lives Matter for not handing over documents, tax informationIndiana Attorney General Todd Rokita has announced a lawsuit against the global chapter of Black Lives Matter.
Read more »
A Toll Bros. founder sees new business opportunities amid global troublesWe spoke to Bruce E. Toll, co-founder in 1967 of Fortune 500 homebuilder Toll Bros., about the Russia-Ukraine conflict and U.S. price and interest rate inflation.
Read more »