The claim: Bill Gates is working to block the sun to prevent global warming Bill Gates' wealth has allowed him to donate and invest in projects across the globe — it has also made him a frequent target for conspiracy theories. Recently, social media users are claiming Gates is working to block the sun's rays in order to combat global warming. One example is this April 8 Facebook post, which reads, "Let me get this straight. Bill Gates is working on a way to block the sun's rays so we prevent global warming. On the other hand we are expected to go to solar powered energy. So how does that work???"