Robert Downey Jr.’s Iron Man may have met his end in the Marvel cinematic universe, but the movie star wants to keep doing things that one might associate with his on-screen persona, genius billionaire Tony Stark. The actor announced that he’s launching a collaborative effort to clean up the earth by making use of AI and robotics. Speaking at Amazon’s re:MARS conference in Las Vegas, the actor recounted an insight he’d heard from scientists that inspired this mission: using robotics and nanotechnology, we could clean up the planet significantly in the next 10 years. Downey Jr.’s vision will take the…

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