When Suzanne Simard discovered that trees could communicate through underground networks of fungi in 1997, her work was largely dismissed.But today, as a Professor of Forest Ecology at the University of British Columbia, her work is recognised as pioneering within the scientific community. In her book ‘Finding Mother Tree’, she explores how forests have ‘hub trees’ that play an important role in plant communication.In today’s episode of Ways to Change the World, Suzanne looks back at her work, and explains to Krishnan Guru-Murthy how it could help protect forests from climate change. Produced by Imahn Robertson and Annie La Vespa.