Update 2023: Video link has been updated.

One of the most confusing effects of climate change is the increasing incidence of weather extremes, that may include hot, AND cold, snow and rain, wet and dry, drought and flood.
Scientists have been examining this problem intensely over recent years, as Europe, America, and Asia have all been subject to wave after wave of record breaking weather events. Now the picture is coming into focus. http://yaleclimatemediaforum.org

• Tornado counts, NOAA http://www1.ncdc.noaa.gov/pub/data/cm…
• Arctic Warming altering weather http://www.climatecentral.org/news/ar…
• Arctic changes and Weather Extremes: NYTimes http://www.nytimes.com/2012/03/29/sci…
• Jennifer Francis: Linking Weird Weather to Arctic changes http://e360.yale.edu/feature/linking_…
• Jennifer Francis graphs http://e360.yale.edu/slideshow/loss_o…
• Munich Re:Statement of Prof. Peter Hoppe/2010 Press release on climate related Natcats http://www.munichre.com/en/media_rela…
• Current tornado stats – US http://www.spc.noaa.gov/wcm/
• Shrinking western snowpack http://www.sltrib.com/sltrib/news/539…