#PlanetaryWaves linked to wild summer weather have tripled since 1950, study finds
By SETH BORENSTEIN
Updated 4:51 PM EDT, June 16, 2025
WASHINGTON (AP) — "#ClimateChange has tripled the frequency of atmospheric wave events linked to extreme summer weather in the last 75 years and that may explain why long-range computer forecasts keep underestimating the surge in killer #HeatWaves, #Droughts and #floods, a new study says.
"In the 1950s, Earth averaged about one extreme weather-inducing planetary wave event a summer, but now it is getting about three per summer, according to a study in Monday’s Proceedings of the National Academy of Sciences. Planetary waves are connected to 2021’s deadly and unprecedented Pacific Northwest heat wave, the 2010 Russian heatwave and Pakistan flooding and the 2003 killer European heatwave, the study said.
" 'If you’re trying to visualize the planetary waves in the northern hemisphere, the easiest way to visualize them is on the weather map to look at the waviness in the jet stream as depicted on the weather map,' said study co-author Michael Mann, a University of Pennsylvania climate scientist.
"Planetary waves flow across Earth all the time, but sometimes they get amplified, becoming stronger, and the jet stream gets wavier with bigger hills and valleys, Mann said. It’s called quasi-resonant amplification or QRA."
#GlobalWarming #ClimateCrisis
#GlobalHeating #ClimateCatastrophe
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#Oiligarchy #Capitalism #ExtremeWeather
Greg Cocks 
Research by Sarah Schöngart et al. shows the wealthiest 10% caused TWO-THIRDS of global warming since 1990. The top 1% have an even bigger impact on extreme weather like 
