The Anthropocene Reviewed is the shared name of a podcast and 2021 nonfiction book by John Green. The podcast started in January 2018, with each episode featuring Green reviewing "different facets of the human-centered planet on a five-star scale". The name comes from the Anthropocene, the proposed geological epoch that includes significant human impact on the environment. Episodes typically contain Green reviewing two topics, accompanied by stories on how they have affected his life. These topics included intangible concepts like humanity's capacity for wonder; artificial products like Diet Dr. Pepper; natural species, such as the Canada goose, whose fates have been altered by human influence; and phenomena that primarily influence humanity, such as Halley's Comet.
The podcast was released monthly until September 2020, when Green announced he was putting it on hiatus as he adapted it into a book. The Anthropocene Reviewed: Essays on a Human-Centered Planet, was published by Dutton Penguin on May 18, 2021, featuring revised essays from the podcast and several new essays. The book received positive reviews and debuted at number one on The New York Times Best Seller list. After the release of a four-episode season accompanying the book's publication, Green announced he had no plans to release any more episodes.
Podcast
Each podcast typically covers two topics, which have included celestial phenomena, works of art, diseases, and human emotions. The subjects serve as starting points for explorations of Green's own life and perspectives in the form of memoir-like essays, which have been described as "thought-provoking reviews [that] use a blend of poetry, historical detail and humor."