Researchers link stronger Pacific trade winds to pause global warming

  • 10 years ago
Originally published on February 13, 2014

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A study published in Nature Climate Change and conducted by Australian and US researchers links the dramatic intensification of equatorial trade winds to cooler global temperatures.

The research outlines that an unprecedented intensification of trade winds blowing over the Pacific for the past two decades has accelerated the circulation of the Pacific ocean.

This process it is believed to cause more heat to be taken out of the atmosphere and transferred into the subsurface ocean while bringing cooler waters to the surface, ultimately leading to cooler average global temperatures.

According to the study, scientists have long suspected that extra ocean heat uptake has slowed the rise of global average temperatures, but the mechanism behind the process remained unclear for long time.

According to the lead author of the study, Professor Matthew England, the heat uptake however is by no means permanent. When the trade wind strength returns to normal the heat will quickly accumulate again in the atmosphere.

As the National Geographic reported, global warming hasn't stopped. "The ten hottest years on record have occurred since 1998, with 2010 being the hottest ever."

With this study however scientist have suggested a reason why, despite the concentrations of heat-trapping greenhouses gases have continued to rise, the global temperature has been rising more slowly than before.

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