Cooling And Warming Cause Snow... Not Exactly
SEARCH BLOG: GLOBAL WARMING
In a desperate attempt to convince the world that black is white and hot is cold, Al Gore reiterates the concept that global warming causes more snow. So let's take a macro look at what has happened in the U.S. [data shown below is for the entire northern hemisphere].
From Watts Up With That?
Now that we have reached the end of the meteorological winter (December-February,) Rutgers University Global Snow Lab numbers (1967-2010) show that the just completed decade (2001-2010) had the snowiest Northern Hemisphere winters on record. The just completed winter was also the second snowiest on record, exceeded only by 1978. Average winter snow extent during the past decade was greater than 45,500,000 km2, beating out the 1960s by about 70,000 km2, and beating out the 1990s by nearly 1,000,000 km2. The bar chart below shows average winter snow extent for each decade going back to the late 1960s.
....................Cooling.......................Warming........................Cooling
Mr. Gore would have to argue that the decade of the 80s and 90s, which were a warming period in the U.S., should have had more snow coverage and extreme snowstorms... but they didn't. The decades of the 60s and 70s which were notoriously cold in the U.S. ... so much so that newspapers and magazines were hyping a new "ice age"... had more snow coverage than the 80s and 90s. This decade of cooling in the U.S. has coincided with more record cold temperatures and more record snowfall.I remember arriving in Grand Forks AFB, North Dakota in November of 1968 and being given an "orientation" that included pictures of snow covering the entire first story, and sometimes second stories, of buildings a couple years back and being warned of "severe arctic" winters. Temperatures of minus 30° F were common in the winter as were freezing deaths. "Snow packing" was a well-known condition when snow, driven by very high winds, would accumulate in the engine compartment of running vehicles where it would melt and short out the electrical system. The vehicle would then stall and could not be restarted. I know because I was in a vehicle when that occurred.Perhaps anecdotal remembrances are not sufficient explanation that snow and cold go together and that snow is less prevalent during warming periods... but the data above should be somewhat more compelling and less strain on credulity than Mr. Gore's assertion that greater warmth brings more snow. Maybe more rain? Maybe longer growing seasons? Definitely less snow.
I remember moving to Michigan in the early 70s and buying a home in the late 70s and then equipping it with central air conditioning in early 80s ... just in time to ward off a summer with over 30 days of 90°+ temperatures... the same time we were having winters when a broom was all that was needed to keep the driveway clear of snow.
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