From PBS Terra.

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What happens when a planet crosses a climate tipping point it can’t recover from?
Venus may hold the answer.

Scientists think Venus once had oceans, water, and a climate that may have resembled early Earth. But something pushed the planet past a threshold. Water evaporated, greenhouse warming spiraled, and Venus became the hottest planet in our solar system.

So what was that tipping point? And could anything like it happen on Earth?

In this episode of Weathered, Maiya May explores the science behind runaway greenhouse effects, ancient volcanic carbon releases, and one of the most surprising climate wildcards scientists have discovered: the potential collapse of stratocumulus clouds.

From crocodiles in the Arctic during past hothouse climates to cutting-edge models of cloud loss under extreme CO₂ levels, this episode investigates what keeps Earth’s climate stable and what could push it toward irreversible change.

Earth isn’t turning into Venus anytime soon. But Venus reveals something more important: what happens when a planet loses its brakes.

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