March 15, 2021: Assessing The Storm; What Research Says About COVID Transmission, Masks

Ed Greene from 9News gives perspective on the big snowstorm, how it stalled, and how it measures up. Plus Avery Lill looks into the heavy, wet snow's impact on trees. Then, what the research says about how COVID-19 spreads through aerosol transmission compared to surfaces, and the efficacy of masks, from disposable to N-95.