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"Large atmospheric waves in the jet stream present..." Topic


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Tango01 Supporting Member of TMP04 Jan 2020 2:07 p.m. PST

… risk to global food production

"Lead author, Dr Kai Kornhuber from the University of Oxford's Department of Physics and Colombia University's Earth Institute, said: "Co-occurring heatwaves will become more severe in the coming decades if greenhouse gases are not mitigated. In an interconnected world, this can lead to food price spikes and have impacts on food availability even in remote regions not directly affected by heatwaves.

"We found a 20-fold increase in the risk of simultaneous heatwaves in major crop producing regions when these global scale wind patterns are in place. Until now this was an underexplored vulnerability in the food system. We have found that during these events there actually is a global structure in the otherwise quite chaotic circulation. The bell can ring in multiple regions at once and the impacts of those specific interconnections were not quantified previously."…"
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