Since Jonathan Reckford became the CEO for Habitat for Humanity in 2005, the nonprofit housing organization has grown to help nearly 30 million people improve their housing conditions. “An interesting hybrid between a global corporation and a denomination,” he said. But as the world faces a growing affordable housing crisis, his work faces the same barriers as many people trying to find shelter. He spoke with us about some of the challenges to building affordable housing in a for-profit world.