The strongest trade winds have driven more of the heat from global warming into the oceans; but when those winds slow, that heat will rapidly return to the atmosphere causing an abrupt rise in global average temperatures.
Heat stored in the western Pacific Ocean caused by an unprecedented strengthening of the equatorial trade winds appears to be largely responsible for the hiatus in surface warming observed over the past 13 years.
New research published today in the journal Nature Climate Change indicates that the dramatic acceleration in winds has invigorated the circulation of the Pacific Ocean, causing more heat to be taken out of the atmosphere and transferred into the subsurface ocean, while bringing cooler waters to the surface.
“Scientists have long suspected that extra ocean heat uptake has slowed the rise of global average temperatures, but the mechanism behind the hiatus remained unclear” said Professor Matthew England, lead author of the study and a Chief Investigator at the ARC Centre of Excellence for Climate System Science.
“But the heat uptake is by no means permanent: when the trade wind strength returns to normal – as it inevitably will – our research suggests heat will quickly accumulate in the atmosphere. So global temperatures look set to rise rapidly out of the hiatus, returning to the levels projected within as little as a decade.”
The strengthening of the Pacific trade winds began during the 1990s and continues today. Previously, no climate models have incorporated a trade wind strengthening of the magnitude observed, and these models failed to capture the hiatus in warming. Once the trade winds were added by the researchers, the global average temperatures very closely resembled the observations during the hiatus.
“The winds lead to extra ocean heat uptake, which stalled warming of the atmosphere. Accounting for this wind intensification in model projections produces a hiatus in global warming that is in striking agreement with observations,” Prof England said.
“Unfortunately, however, when the hiatus ends, global warming looks set to be rapid.”
The impact of the trade winds on global average temperatures is caused by the winds forcing heat to accumulate below surface of the Western Pacific Ocean.
The Latest on: Global surface warming
via Google News
The Latest on: Global surface warming
- Paul Muschick: Pennsylvania is heating up because of climate change. Let’s do something about iton November 15, 2019 at 5:39 am
There’s room for both. The changes DePasquale called for would treat the symptoms of climate change and try to reduce man’s contribution — the production of greenhouse gases, which contribute to ...
- Effects of global change factors and living roots on root litter decomposition in a Qinghai-Tibet alpine meadowon November 15, 2019 at 2:16 am
Yet, few experiments have carefully examined root decomposition as influenced by global change. We conducted a field study to investigate the effects of nitrogen (N) addition, air warming, ...
- Changes in tuna’s carbon ratios signal a global shift in oceanic food webon November 14, 2019 at 2:48 pm
Over the last 50 years, the oceans have absorbed 90% of the heat and 30% of the carbon emissions associated with global warming. This has promoted conditions in which water masses with different ...
- Editorial: Trump’s EPA is trying to limit science in crafting new regulationson November 14, 2019 at 11:00 am
Among other things, the administration has brushed off as unimportant the effect of burning fossil fuels on global warming, and has ignored the effect of emissions of ... That sounds reasonable on the ...
- Weather warning: Big freezes and extreme conditions will INCREASE due to global warningon November 14, 2019 at 5:45 am
While it sounds counter-intuitive to link global warming to colder weather, scientists say there is a reason behind it ... This results in a wavier jet stream – a stream of air up to 16 kilometres ...
- 'The Big Thaw': A warm book on a dangerously warming Arcticon November 12, 2019 at 11:35 am
Cause for alarm in that permafrost covers one quarter the land surface of the Northern Hemisphere ... Dr. Robert Max Holmes of the Woods Hole Research Center explains it: "As temperatures in the ...
- Global Aluminum Sulfate Market 2019-2023 | Increase in Demand from Niche Applications | Technavioon November 11, 2019 at 1:00 pm
In addition, factors such as global warming and changing climatic conditions have limited ... The application of aluminum sulfate cleans the water surface by settling phosphorous and other unwanted ...
- Frequency of extreme precipitation increases extensively with event rareness under global warmingon November 7, 2019 at 8:17 pm
The intensity of the heaviest extreme precipitation events is known to increase with global warming. How often such events occur in a warmer world is ... 1a shows a conceptualized probability density ...
- Over 11,000 scientists worldwide declare global climate emergencyon November 6, 2019 at 6:46 pm
The global coalition of scientists led by Ripple and Christopher Wolf from OSU point to six areas in which humanity should take immediate steps to slow down the effects of a warming planet.
- 11,000 scientists from around the world unite to declare global climate emergencyon November 5, 2019 at 11:12 am
The data showed immediate action needs to be taken to stop global warming or else widespread human suffering ... analysed a range of measures - including surface area, population growth, fertility ...
via Bing News