Maine's lobster industry is thriving thanks to climate change — but it won't last if the waters continue to warm

Lobster is a $1.4 billion industry in Maine, employing more than 4,100 people directly and thousands more in related businesses. But climate change is warming the chilly Atlantic water lobsters need to thrive, prompting a marine migration to the north.

George Dowdle has been farming oysters for four decades. Lately, his operation has been booming.

"Twenty-five years ago, this time of year we were getting ready to put everything down for the winter. And by the end of November, at the very latest, we have two inches of ice and we'd be done," Dowdle told CBS News. "Now, I'm fishing right through until January."