Record cold from global warming causing ‘polar vortex’ debunked – ‘Paper confirms there is no evidence that climate change has slowed the jet stream or increased frequency of jet stream blocking’


By: - Climate DepotJanuary 7, 2014 3:36 PM

New paper debunks claims that ‘Arctic amplification’ causes extreme weather – A new paper published in Geophysical Research Letters debunks claims that “Arctic amplification” is causing an increase of extreme weather in North America or the North Atlantic, finding such claims are “an artifact of the methodology” and not real. The paper finds no evidence of an increased frequency of jet stream blocking or a decrease of jet stream speed, a result corroborated by a recent paper finding no significant changes of the jet stream over the past 140 years. The paper debunks claims by climate alarmists such as Heidi Cullen [and Jennifer Francis] that “Arctic amplification” is causing a “constipated jet stream” leading to increased extreme weather in North America.