SUSAN PHILLIPS / WHYY – On the campus of a former DuPont facility in Newark, Delaware, a group of researchers are working to create what they say is key to solving the world’s climate crisis — an affordable way to make hydrogen using renewable energy.

“It’s not a question of technical feasibility. It is a question of figuring out what is the lowest cost to produce that hydrogen,” said Balsu Lakshmanan, chief technology officer for the start-up Versogen. “We are displacing bad hydrogen with good hydrogen” …