Global Warming increases the intensity and frequency of storms, and causes unseasonable weather. We are seeing both in different parts of the country…

An area spanning from Minnesota to Texas could be at risk of life-threatening tornadoes this weekend:

“Baseball-sized hail is tearing the siding off homes in northeast Nebraska, a tornado has touched down in Kansas and forecasters are warning residents across the nation’s midsection to brace for ‘life threatening’ storms.” (Midwest Tornadoes: ‘Life-Threatening’ Storms Feared This Weekend)

Record-breaking heat predicted for the Boston Marathon:

“Due to the unusually warm weather conditions forecast for the Boston area on Monday, the BAA will defer the entry of those official entrants to the 2013 Boston Marathon for participants who decide not to race.” (BAA to allow runners to defer to 2013, keep finish line open later)