elon muskElon Musk wants to solve the world’s problems — but his solutions have had varying degrees of success.Lucy Nicholson / Reuters

Ah, Elon Musk.

The eccentric billionaire and real-life Tony Stark has courted controversy and made headlines for all the wrong reasons lately, but he’s also had some remarkable success in developing world-changing technology. 

For all his bluster, attacks on journalists, and odd behavior, he does seem genuine in his offer to help solve some of humanity’s most dire problems.

He’s put his money where his mouth is. Climate change? Musk’s electric car company, Tesla, has made electric cars exciting. Traffic woes and all the negative health effects of congestion-caused pollution? Musk created The Boring Company to dig a network of tunnels below Los Angeles to avoid gridlocked freeways. Colonizing other planets to save ourselves from extinction? SpaceX is working on it. 

Beyond these moonshot initiatives, Musk has delivered real results. After Hurricane Maria knocked out power for millions of Puerto Rico’s residents last year, Musk donated hundreds of solar-powered batteries to the island. 

Below, we check in on a few of humanity’s problems Musk said he wants to solve. Here’s where he’s at — and whether or not he’s actually helping.