Gasoline prices in the United States have fallen to their lowest level since 2010. And the reason for that is pretty simple — global oil prices are crashing. But why are oil prices crashing? That's a more complex story, as we explain in the video above. Further reading: What the huge drop in gasoline prices means for America http://www.vox.com/2014/12/2/7319307/gas-prices-falling Subscribe to our channel! http://www.youtube.com/subscription_center?add_user=voxdotcom Vox.com is news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com to get up to speed on everything from Kurdistan to the Kim Kardashian app. Check out our full video catalog: youtube.com/voxdotcom/videos Follow Vox on Twitter: https://twitter.com/voxdotcom Or on Facebook: https://www.facebook.com/Vox