which planet has a runaway greenhouse effect
The results of the latest analysis are not entirely reassuring. Sometime in the last few billion years, disaster struck one of Earthâs nearest neighbours. Planetary geologists think there is good evidence that Venus was the victim of a runaway greenhouse effect which turned the planet into the boiling hell we see today. A similar catastrophe is almost certain to strike Earth in about 2 billion years, as the Sun increases in luminosity.