Wolfgang Busch is a professor and the co-director of Salk’s Harnessing Plants Initiative. He is a renowned plant biologist who focuses on understanding plant roots, which are critical for obtaining water and nutrients from the soil and play a major role in the global carbon cycle. On this episode of Where Cures Begin , he talks about why he left microbiology for plant biology; how plants can help address climate change; and possibly having the biggest collection of root movies in the world.