Let's say, global warming is real, for the sake of discussion. Even the worst case scenarios they are talking about in 1.5°-2.5°F average. That would not account for days where we have 20° higher temps. There was a history channel show about a strange weather incident that took place in the early 1900's in Nebraska, when a Chinook wind brought in temperatures in January that reached the mid-70's. People went out picnicking and generally being stupid and not taking jackets. In a matter of a couple hours in the afternoon, the temperature dropped by nearly 100°. Several dozen people died from hypothermia and exposure before they could get back to shelter. We've set several warm and cold records this year in Arizona-a nice change from the brutal cold of the previous 3 years constant record/near-record cold. Weird weather has always happened, and will always happen.