According to the World Health Organization, over 9 out of 10 people live in areas with excessive air pollution, and yet, it's something many of us may not often think about. Join Casey and Sara for a discussion on what causes air pollution, its impacts on health and the environment, and what we can do about it. 

Resources for this episode:

Deadly Denora Smog of 1948 (Smithsonian Mag)

Air Pollution (WHO)

Air Pollution: Everything You Need to Know (NRDC)

Effects of Air Pollution (Center for Science Education)

Air Pollution: Current and Future Challenges (EPA)

Air Pollution Laws Aimed at Human Health also Help Birds (Cornell)

Urban Environment and Cancer in Wildlife