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We Just Crossed Our FIRST Tipping Point… And It’s NOT What You Think

Season 7 Episode 3 | 12m 52s

From melting ice sheets to collapsing ocean currents, these sudden, irreversible changes could reshape the planet in ways we can’t undo. But what does it really mean to cross a tipping point? How do we know we’ve crossed one? And how close are we to triggering others?

Aired: 10/22/25
Extras
Get a sneak peek at a brand new season of NATURE on PBS.
Meet gifted artisans who pour passion and skill into timeless products made with love.
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Trailer for Remake by director Ross McElwee.
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Trailer for Arrest the Midwife by director Elaine Epstein.
Celebrate the life and career of Pulitzer Prize-winning poet Mary Oliver.
Mary Oliver sought to call attention to the destruction of the earth in her work.
Listen to Steve Buscemi read Mary Oliver's poem "The Fish" in this excerpt from the film.
Mary Oliver met her life partner, photographer Molly Malone Cook, at Steepletop.
Mary Oliver often hinted at the turmoil within her family, but sought to move past it.
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Trailer for How to Build a Library by directors Maia Lekow and Christopher King.
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