dr. richard muller used to be a global warming skeptic but don't confuse cause and affect, he says. >> when you do the science, it's turns up none of the storms goring down gooft does keep track here is a time lapse do you see a pattern? there is none. we're looking at weather not climate. if there are more people to see them and more have camera phones. beginning a lot more than they have in the past. we're recording more. or to put knit a climate context a big tornado in the wrong time and place. >> and it wasn't an extraordinary storm. just happened to be one got into the wrong place. dr. muller says you can refrain from making aassumptions on how global warming will affect climate less than one degree so far. so all we know it may decrease. >> thank you very much. >> stay with us for latest developments. we've posted this bad skppblg you can share it on your time line to let your friends know about the red cross campaign to collect money for relief. you can make a $10 donation by texting red cross to 90999. >> super bowl 50 has been award to san francisco. nfl team owners met to announc