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Ocean sponges suggest Earth has warmed longer, more than thought; some scientists dubious

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… ....

Malcolm Mcculloch , Natalie Mahowald , Michael Oppenheimer , Michael Mann , James Hansen , El Nino , Princeton University , Cornell University , Indiana State University , University Of Western Australia , United Nation Intergovernmental Panel On Climate , University Of Pennsylvania , Associated Press , Nature Climate , Amos Winter , Indiana State , United Nation Intergovernmental Panel , Industrial Revolution ,

Climate change: Has the planet warmed more than we thought?

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.

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Natalie Mahowald , Michael Mann , James Hansen , Malcolm Mcculloch , University Of Western Australia , University Of Pennsylvania , Indiana State University , United Nation Intergovernmental Panel On Climate , Cornell University , Nature Climate , Amos Winter , Indiana State , United Nation Intergovernmental Panel , Industrial Revolution , Ee National ,

Climate change: Has the planet warmed more than we thought? | National & World News

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.

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Michael Mann , James Hansen , Malcolm Mcculloch , Natalie Mahowald , United Nation Intergovernmental Panel On Climate , Indiana State University , University Of Western Australia , Cornell University , University Of Pennsylvania , Nature Climate , Amos Winter , Indiana State , United Nation Intergovernmental Panel , Industrial Revolution ,