Professor Ally Lewis describes the main air pollutants and how they affect the world.
Watch Ally's full event from the Hay Festival 2018: https://www.hayfestival.com/p-13836-aardmans-dan-binns-and-ally-lewis-talk-to-andy-fryers.aspx?skinid=16
Published by: Hay LevelsPublished at: 5 years agoCategory: آموزشی