A handful of centuries-old sponges from deep in the Caribbean are causing some scientists to think human-caused climate change began sooner and has heated the world more than they thought. They calculate that the world has already gone past the internationally approved target of limiting global warming to 1.5 degrees…
A handful of centuries-old sponges from the Caribbean are causing some scientists to theorize that human-caused climate change began sooner and has warmed the world nearly a degree Fahrenheit more than most scientists previously thought. In Monday s study, researchers figure that the world more than a decade ago blew past the internationally approved threshold of limiting global warming to 1.5 degrees Celsius since pre-industrial times and by 2020 had hit 1.7 degrees of added heat. They calculated the dramatic difference from scientific orthodoxy by examining six of these long-lived sponges for evidence of warming since 1700. Other scientists are skeptical of the study’s claims.
A handful of centuries-old sponges from the Caribbean are causing some scientists to theorize that human-caused climate change began sooner and has warmed the world nearly a degree Fahrenheit more than most scientists previously thought. In Monday s study, researchers figure that the world more than a decade ago blew past the internationally approved threshold of limiting global warming to 1.5 degrees Celsius since pre-industrial times and by 2020 had hit 1.7 degrees of added heat. They calculated the dramatic difference from scientific orthodoxy by examining six of these long-lived sponges for evidence of warming since 1700. Other scientists are skeptical of the study’s claims.
“Research on a long-lived but rarely seen species in the Caribbean is helping scientists piece together a revised history of climate change.” Raymond Zhong (The New York Times) reports on recent studies on sclerosponges in Puerto Rico and St. Croix that show that humans have raised global temperatures by a total of about 1.7 degrees…
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