Mark Cleveland understands how hard it can be to get people and companies to make sustainable choices. The startup he founded, Hytch, has a solution that’s taking off fast: cold hard cash. To put it simply, Hytch pays people to carpool, or otherwise team up on their daily commutes. Since launching in February of this year, the company has logged an impressive 2 million miles of shared rides in the state of Tennessee and signed up more than 6,000 participants. It’s all made possible by the sponsorship of corporate partners looking to help employees and their communities make better, more efficient commuting choices.