Chris Hayes talks with meteorologist Paul Douglas about how the different forecasting models work, and how meteorology in general has evolved over the past few decades.Jan. 27, 2015
UP NEXT
Donelan: Partnership on AI allows US and UK to regulate tech that will ‘define generations to come’
05:26
Trump social media company to go public after merger
02:45
NJ AG Platkin: Consumers ‘are spending more for an inferior product because of’ Apple
05:22
Attorney General Garland announces antitrust lawsuit against Apple
03:31
Justice Department suing Apple for antitrust violations