() —Tim Palmer, a climate scientist and professor at the University of Oxford in the U.K. has published a somewhat controversial Perspective piece in the journal Science. In it, he theorizes that heavy thunderstorms in the western tropical Pacific (due to global warming) this past winter caused changes to the flow pattern of the jet stream, which resulted in the "polar vortex" that chilled the northern part of North America for the first four months of 2014.
2014 Set for Record Hot; Record Cold Thing of the Past
My Fear is Losing Everything”: The Climate Crisis and First
2014 Breaks Heat Record, Challenging Global Warming Skeptics - The
Inventories of extreme weather events and impacts: Implications
Climate change - Wikipedia
Winter heatwaves are nice, as extreme weather events go
Global Warming and Climate Change skepticism examined
Understanding and managing connected extreme events
Symmetry, Free Full-Text
Climate Change is Influencing Seattle's Unusual Spring Heatwave
Monitoring and modelling marine zooplankton in a changing climate
January–March 2014 North American cold wave - Wikipedia
Overstating the effects of anthropogenic climate change? A
MeCCO Monthly Summaries :: Media and Climate Change Observatory