We are very much riveted on the subject of public health at the moment, because that is our current challenge: stopping the spread of COVID-19 so life can return to something like normal.
It's not a big step beyond public health to a larger focus: planetary health. Many people insist the health of humans is intimately tied to the health of the planet.
And a number of others make the case--an optimistic one--that caring for the planet will yield great benefits for its occupants. A collection of those arguments appear in the book Planetary Health: Protecting Nature to Protect Ourselves, edited by Samuel Myers and Howard Frumkin.
Dr. Frumkin, both MD and public health expert, has experience at the CDC and other governmental and private agencies in environmental health; he is our guest.