Silicon Valley Is Making Gasoline Out of Thin Air

A growing number of experts believe that a promising technology, known as carbon capture, will be an essential part of any plan to confront climate change. But until now the science of removing carbon from the air has only ever been demonstrated at a small scale—and the process of turning that carbon into useful products, such as fuel, has cost too much to make a real difference. This week on Decrypted, meet two startups that think they may have a solution.