From sinking cities to species extinction, the effects of climate change are expected to be disastrous. And these shifting weather patterns will especially impact our food supply. One beloved crop, the grape, is already facing threats due to its extreme sensitivity. In turn, that threatens the grape's main byproduct: wine. In the vineyards of Napa during historic wildfires and the wine laboratories of Bordeaux, Gianna Toboni explores the dangers facing viticulture, and what they mean for agriculture everywhere. Subscribe to VICE News here: bit.ly/Subscribe-to-VICE-News Check out VICE News for more: vicenews.com Follow VICE News here: Facebook: www.facebook.com/vicenews Twitter: twitter.com/vicenews Tumblr: vicenews.tumblr.com/ Instagram: instagram.com/vicenews More videos from the VICE network: www.fb.com/vicevideo #VICEonHBO