Ghosts of Climates Past article

Check out this interesting Seed magazine article on studying the climates of Mars and Venus for potential future Earth climate conditions.

When we compare Earth with other planets, we see how easy it is for a planet to permanently lose a pleasant climate. Venus and Mars each started out with warm oceans and volcanoes, and the same carbonate thermostat that keeps Earth temperate was once also operating on our planetary siblings. Yet on each of these other planets, the feedback loop broke down, and the climate veered off toward an uninhabitable state. For each, the reasons behind the collapse are different yet illustrate two destinies that could have been ordained for our planet.

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