How climate change is making white Christmas a rare event 

IE 11 is not supported. For an optimal experience visit our site on another browser.Now PlayingHow climate change is making white Christmas a rare event01:45UP NEXTAmtrak delays snarl holiday train travel along much of East Coast01:38Winter weather hits coast to coast, threatening holiday travel01:43Winter storm threatens Midwest holiday travel01:21Cyclone Chido leaves communities destroyed while thousands wait for aid on island of Mayotte02:26Deadly cyclone devastates French Indian Ocean islands01:03Rare tornado hits Northern California  01:33Video shows rare tornado touch down on California00:49Watch: Cars drive through rain-flooded Boston tunnel00:39Storms cut electricity to thousands of Massachusetts residents01:33Progress in Southern California wildfire battle, but threat continues01:30California wildfire impacts 20,000 residents, evacuations ordered02:04Northern California coast under tsunami warning after 7.0-magnitude earthquake02:35Parts of Northern California under tsunami warning after 7.0-magnitude earthquake01:49More snow predicted for hard-hit Great Lakes region01:25Severe winter weather, bitter cold temps grip parts of US03:39After massive snowstorm, millions brace for more snow in western New York and Pennsylvania01:32Millions around the Great Lakes region brace themselves for more snow01:385 million impacted by winter weather alerts and the snow will continue01:08Arctic blast sweeps northern U.S., threatening post-Thanksgiving holiday travel01:46Now PlayingHow climate change is making white Christmas a rare event01:45UP NEXTAmtrak delays snarl holiday train travel along much of East Coast01:38Winter weather hits coast to coast, threatening holiday travel01:43Winter storm threatens Midwest holiday travel01:21Cyclone Chido leaves communities destroyed while thousands wait for aid on island of Mayotte02:26Deadly cyclone devastates French Indian Ocean islands01:03Play All