Nature and EnvironmentSmog threatens food productionTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and EnvironmentChetna Krishna08/06/2020August 6, 2020When it's high in the atmosphere, ozone can protect us from the sun. But ground-level ozone, commonly referred to as smog, is harmful. This pollutant also affects agriculture — how big of a problem is it?https://p.dw.com/p/3gWH0Advertisement
