to one to two months. >> reporter: another mystery, whether all of this is connected to climate change or not, bill lapenta from the centers of environmentalle prediction says they're still trying to crack that code, trying to find out if climate change impacts that crazy weather. christi and victor. >> thanks, brian, so much. we're coming up on a new era in late night. >> i know. >> jimmy fallon is getting ready to take over the top late night show in america. and he's being paid a pretty penny to do it. coming up, the business of being jimmy fallon. ♪ so wake me up when it's all over when i'm wiser and i'm older ♪ the volkswagen passat against all comers. turbocharged engines against...engines. best in class rear legroom against other-class legroom. but then we realized. consumers already did that. twice.