Question by Ottawa Mike: Does global warming cause more snow or less snow?
Before last winter’s excessive snow storms and the amount of snow and cold at the start of this winter, I recall most reports, studies, etc. point to global warming resulting in less snow, more rain, ski resorts closing, etc.
Here is a (small) sample of past statements linking snow and global warming:
“Climate change blamed for Olympic snow shortage”: http://www.cbc.ca/canada/british-columbia/story/2010/01/28/bc-olympics-climate-change.html
“Global warming threatens ski resorts”: http://www.newscientist.com/article/dn4441-global-warming-threatens-ski-resorts.html
“Alps town can’t take the heat, shuts ski area”: http://www.msnbc.msn.com/id/19851586/ns/us_news-environment/
“Less Snow,, Less Water:: Climate Disruption in the West”: http://www.environmentamerica.org/home/reports/report-archives/global-warming-solutions/global-warming-solutions/less-snow-less-water-climate-disruption-in-the-west
“Reduced snowfall in Himalayas due to global warming: study”: http://www.indianexpress.com/news/reduced-snowfall-in-himalayas-due-to-global/456556/
Okay, so what about all the snow and cold recently?
“Climate Scientist: Record-Setting Mid-Atlantic Snowfall Linked to Global Warming”: http://www.democracynow.org/2010/2/12/climate_scientist_record_setting_mid_atlantic
“Global warming may be contributing to the current heavy snow and subzero temperatures across Europe…”: http://climatesignals.org/2010/12/freeze-in-europe-linked-to-cold-wave-pushed-south-by-arctic-warming/
“There is some evidence that climate change could in fact make such massive snowstorms more common, even as the world continues to warm.”: http://www.time.com/time/health/article/0,8599,1962294,00.html?xid=rss-topstories
Can anyone sort this out?
Okay, I get the increased evaporation. And I see some of you say that where you are depends on the increase or decrease in snowfall. I guess the basic global warming prediction is that some places will get more and some less.
Is there a geographical chart with these locations/projections? And is there historical data to show any linkage to temperature?
Answer by Jeff M
It matters what location in the world you live in and what average temperatures and current weather conditions are in that area. I’m sure you’re aware that there has only been a 0.7C rise in temperature due to an increase in greenhouse gases and longwave radiation in the troposphere. I’m also sure you’re aware that day-to-day and month-to-month weather variations exceed this level by, often, quite a substantial amount. I believe Trevor pointed out that the recent snowfall in Europe can be attributed to a change in the jetstream.
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