Stephen Hawking warns Earth could become as hot as Venus if we do not cut greenhouse gas emissions, a significant driver of climate change.
Venus is by far the hottest planet in the solar system with a searing average surface temperature of 864 degrees Fahrenheit.
“Venus is like Earth in so many ways, a sort of kissing cousin,” the famed theoretical physicist said in the second episode of his new series, Stephen Hawking’s Favorite Places. “She’s almost the same size as Earth, a touch closer to the sun. She has an atmosphere.”
NASA explains that for up to 2 billion years of its early history, Venus may have had a shallow liquid-water ocean and habitable surface temperatures. However, due to its position to the sun, the planet’s water eventually evaporated. With no water left on its surface, carbon dioxide built up in the atmosphere and led …
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