Warmer and Wetter Winters in Europe and Western North America Linked to Increasing Greenhouse Gases
June 2, 1999
Why are winters warming up so much faster over Northern Hemisphere continents than over the rest of the globe? A new study by NASA researchers in the June 3 issue of the journal Nature is the first to link the well-documented large degree of North America and Eurasia winter warming and the associated wind changes to rising greenhouse gas levels in the atmosphere.
Using a computer climate model to try and understand where the warming over the past three decades is coming from, Shindell and colleagues discovered that in the model, increasing greenhouse gases cause stronger spiraling winds over the North Pole, a phenomenon called the polar vortex, that change the normal Northern Hemisphere climate. “Northern Hemisphere winters have been warming up for the past 30 years,” Shindell said. “It’s a big concern to know why this happens.”
Since this report came out – definitively tying winter warming to CO2, winter temperatures have plummeted in Europe and Western North America – while CO2 levels have continued to increase.
These people have no idea what they are talking about, yet they continue to talk incessantly.