Australian-led researchers say global temperatures may have already risen by 1.5 degrees
Scuba diver extracting sponge from underwater Credit: Clark Sherman Amos Winter
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Global temperatures may have already risen by 1.5 degrees since the pre-industrial period, according to an Australian-led team of researchers. They warn that warming could reach 2 degrees by the end of the decade - much sooner than predicted. Their findings come from an unusual source - rare, sea sponges that have a lifespan of hundreds of years.
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