Thursday, June 17, 2021
Home Middle Column Scientists concede global warming 'pause', but now say global temp is...

Scientists concede global warming ‘pause’, but now say global temp is wrong thing to measure

-

http://www.theguardian.com/news/2014/apr/20/weatherwatch-global-warming-ocean-heat-trade-winds

 

 

Has global warming come to a halt? For the last decade or so the average global surface temperature has stabilising at around 0.5°C above the long-term average. Can we all relax and assume global warming isn’t going to be so bad after all?

 

Unfortunately not. Instead we appear to be measuring the wrong thing. Doug McNeall and Matthew Palmer, both from the Met Office Hadley Centre in Exeter, have analysed climate simulations and shown that both ocean heat content and net radiation (at the top of the atmosphere) continue to rise, while surface temperature goes in fits and starts. “In my view net radiation is the most fundamental measure of global warming since it directly represents the accumulation of excess solar energy in the Earth system,” says Palmer, whose findings are published in the journal Environmental Research Letters.

 

So why aren’t surface temperatures keeping pace with ocean heat content and net radiation? The answer, according to a recent study in the journal Nature Climate Change, may be some unusually strong trade winds in the Pacific Ocean, which have buried the surface heat deep underwater, reducing the amount of heat flowing back into the atmosphere. Once the trade winds relax again that heat will likely be released and surface temperatures will bounce up again. In the meantime we’d be wise to keep a closer eye on ocean heat content (using the Argo array of ocean profiling floats) and net radiation (using satellites). Like it or not Earth’s future is looking hot.

- Advertisment -

Related Articles

Icebergs drifting from Canada to Southern Florida

 These 3D perspective views of the seafloor bathymetry from multibeam sonar offshore of South Carolina show numerous grooves carved by drifting icebergs. As iceberg...

Biden’s oil & gas leasing ban ruled unlawful by federal judge

Guest “What took so long?” by David Middleton Biden’s oil lease ban lifted by federal judgeBy JENNIFER A. DLOUHY AND ROBERT BURNSON on 6/16/2021...

Celebrate: We’ve Finally Hit an “Irreversible” Climate Tipping Point

According to Professor Markus Rex, we have finally crossed the line - though years of well funded research are required to confirm that we...