A new study shows that there has been a dramatic U-turn in climate, from the near-record cooling of the early twentieth century to a heat spike.
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The decade of 2000 to 2010 has been one of the warmest suggests the marine fossil data. Using these tiny fossils of marine organisms to reconstruct global temperatures back to the end of the last ice age, research and studies have shown that over the past century, there has been a massive change in the global climate.
This also marks the longest temperature tracking to date. The ability to see what the climate of the earth was for 11000 years is not only remarkable, but will allow us to see the way that we as humans have impacted the climate and the earth.
Pennsylvania State University Professor Michael Mann’s data shows that it took 4000 years for the world to warm about 1.25 degrees from the end of the ice age to about 7000 years ago. The same fossil-based data suggests that the same amount of warming occurred in just one generations, from the 1920’s to the 1940’s.
The study also shows that the recent heat spike “has no precedent as far back as we can go with any confidence, 11000 years arguably,” says Mann, who wrote the original study showing the spike from the perspective of only the last 2000 years. He also indicated that scientists would have to go back 125000 years to find warmer temperatures potentially rivaling todays.