Global temperatures could be less sensitive to changing atmospheric carbon dioxide (CO2) levels than previously thought, says a new study just published in Science.
“The researchers said people should still expect to see “drastic changes” in climate worldwide, but that the risk was a little less imminent,” says science reporter Jennifer Carpenter, writing about the new study.
“Previous climate models have tended to used meteorological measurements from the past 150 years to estimate the climate’s sensitivity to rising CO2.
Can you believe that we’ve been wasting billions upon billions of dollars based on measurements that go back only 150 years?
“Lead author Andreas Schmittner from Oregon State University, US, explained that by looking at surface temperatures during the most recent ice age – 21,000 years ago – when humans were having no impact on global temperatures, he, and his colleagues show that this period was not as cold as previous estimates suggest.
“This implies that the effect of CO2 on climate is less than previously thought,” he explained.
“To induce large-scale warming of the planet, leading to widespread catastrophic consequences, we would have to increase CO2 more than we are going to do in the near future, explained palaeoclimatologist Antoni Rosell-Mele from the Autonomous University of Barcelona, a member of the team that came up with the new estimates.”
Needless to say, other scientists question that perspective.
See entire article:
The referenced research was published in Science
Thanks to Adam Nottage for this link
“Gradually, gradually, the doomsters seem to be winding their position back,” says Adam. “Wonder how long it’ll take for UEA and Mr Hockey-Mann to concur!”
“Love the site, keep up the good work.”