researchers monitor ten sites across the u.s. and canada, between 1995 and 2009. they measured daily temperatures and corresponding pollen count. their findings are nothing to sneeze at. they say higher temperatures are causing people to sneeze, snort and sniff earlier and for several weeks longer. in papillion, nebraska, pollen season grew by 11 days. lacrosse, wisconsin, 13 days. and residents of minneapolis, minnesota, had 16 additional days of suffering. scientists may have found a connection between the farenheit scale and the gesundheit scale. they say as the earth s temperature rises, so does the misery index of allergy sufferers. the increased carbon dioxide doesn t just raise global temperatures. this will speed up plant growth, so that plants are capable of producing more pollen. reporter: and that means even people who never suffered