This week we are joined by Chris Frey, Deputy Assistant Administrator for Science Policy in the U.S. Environmental Protection Agency's Office of Research and Development. We discuss the important role of the EPA and what to expect during the Biden presidency.

Scientists and policymakers use a mix of measurements, models, and data analysis tools to understand air pollution and to build effective policies. We are joined by Drs. Shayak Sengupta, a modeler, and Rishabh Shah, an experimentalist, to discuss these tools and their uses.

Rose and Albert discuss shale gas, air quality, and the future of energy with Allen Robinson.

We talk with filmmaker and activist Mark Dixon about citizen science and environmental communication. Learn more about Mark and his work at http://lens.blue/home/ and https://inversiondoc.com/

What does the shale gas boom look like when you look at environmental and economic impacts together? Erin Mayfield joins us to discuss how to reconcile these different impacts. Visit https://www.facebook.com/sharedairpodcast

Guest Katelyn O'Dell joins us to talk about forest fires and their impacts on air quality. Even if you live far away from the fire, it can impact what you breathe.

Neil Donahue joins us to talk about the connections between air quality, clouds, and climate, and how air pollution links to high energy particle physics.

Millions of people still rely on solid fuel stoves for cooking and heating. Kelsey Bilsback joins us to discuss the impacts of this and whether "clean cookstoves" are the answer.

Our guest this week is David Good from the Allegheny County Health Department Air Quality division. David explains what goes into collecting data to check compliance with the Clean Air Act, and why we can trust the data from the EPA.

This week's conversation is all about indoor air and how we can use indoor air quality to help manage the spread of COVID. Our guest is Steve Guenther from Carnegie Mellon's Facilities Management Division.

For more info on the airborne spread of COVID, please check out this article by Jose Jimenez in Time: https://time.com/5883081/covid-19-transmitted-aerosols/