When Pope Francis met Donald Trump last month, he raised eyebrows by handing the U.S. president his 2015 papal letter on global warming. The Laudato Si —On Care for Our Common Home pins climate change on humanity and calls for international action to save the planet.

It was days before Trump withdrew from the historic Paris Climate Accord that had been signed by nearly every nation. The Vatican called it a “slap in the face.”

Trump may have not been inspired by the Pope’s encyclical—he promised Francis he would read it—but others have been, including two venture capitalists behind the Laudato Si Startup Challenge.

Yes, the Vatican has a tech accelerator–and it’s focused on launching startups that tackle climate change.

Demo Day At The Vatican

Companies participating in the Laudato Si Challenge will receive $100,000 in seed funding in exchange for a 6% to 8% equity investment, and expert mentorship. Participating companies will initially receive four months of remote mentoring, and then travel to Rome for two months of in-person work. It all culminates in a Demo Day—a tech accelerator tradition where startups present their companies to an audience—at the Pontifical Academy of Sciences in the Vatican.

While companies don’t receive funding from the Catholic Church, and all investment comes from private sources, the accelerator enjoys close ties to the Vatican.

“Laudato Si functions like a typical accelerator program with capital investment, equity, mentorship, and guidance,” program director Paul Orlando told Fast Company. “There is a demo day at the end, but the twist is that all of the companies that are selected fit in one way or another into a number of big global problem areas that the pope identified in his encyclical.”