cold climates generally won't get colder, but weather extremes will become more common and more pronounced (think snow in Texas)

In general, the jetstream becomes less intense and moves less, leading to longer periods of the same weather, and both extended drought and extended rain are not great for food production. And the chance of it snapping and letting out part of the polar vortex increases by a lot, causing freak weather anomalies

Montreal used to be solid snow from November to April, now it's weird waves of snow and melt. Slush half the time and garbage weather. Thanks climate change!

Don't forgot the increase in seismic and volcanic events.