There's lots of ways global warming could lead to colder winters.[0] For example, the temperature differential between Arctic and mid-latitude air normally keeps the polar vortex contained. As this differential decreases, however, the polar vortex becomes less contained. As such, the maximum latitude reached by the jet stream increases with the Arctic's temperature. This creates colder weather in some places. [1] [2]
As unintuitive as it sounds, global warming can lead to colder temperatures. It is up to people who disagree with this theory, not its proponents, to prove their case.
As unintuitive as it sounds, global warming can lead to colder temperatures. It is up to people who disagree with this theory, not its proponents, to prove their case.
[0] https://www.ucsusa.org/resources/does-cold-weather-disprove-...
[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455715/
[2] https://www.tandfonline.com/doi/pdf/10.3402/tellusa.v68.3233... [pdf]