Webinar: What's causing the 'Warm Arctic, Cold Continents" pattern?

Cohen and Sun will discuss the roles of Arctic sea ice loss and snow cover change, natural variability, El Niño-Southern Oscillation and other possible connections in causing the “Warm Arctic, Cold Continents” pattern. 

Both Cohen and Sun have recently published articles on the attribution of cold winters across the Northern Hemisphere mid-latitudes. Cohen argues that the cold winters are at least partially forced by a warming Arctic (link to paper), while Sun argues it is simply natural variability (link to paper). The webinar will be a unique opportunity to hear scientists discuss very different causes for the same observed weather phenomenon and highlight why this topic remains controversial.

Wednesday, July 13

12:00 – 1:00 PM EDT

Click here to join the webinar

An Observational Analysis:  Tropical Relative to Arctic influence on Mid-latitude Weather in the Era of Arctic Amplification

Judah Cohen, Atmospheric and Environmental Research Inc./MIT

What caused the recent "Warm Arctic, Cold Continents" trend pattern in winter temperatures?

Lantao Sun, U. Colorado, Boulder/NOAA Earth System Research Laboratory