When Professor Tom Crowther published research into the massive potential of trees to absorb more carbon than previously thought, he helped spur the Trillion Trees movement to plant, restore and conserve forests. But it also caused massive debate. As he publishes updated research, Crowther tells Radio Davos that growing trees must increase biodiversity, and not lead to monoculture plantations, and that it must never be an excuse to slow the drive to eliminate greenhouse gas emissions. Links: Department of Environmental Systems Science at ETH Zurich Restor, an online platform for the global restoration movement 1t.org Trillion Tree Campaign UN Decade on Ecosystem Restoration Podcast links: Related episodes: How to talk to a climate change sceptic Climate change and the other global crisis - nature loss Don't Look Up Check out all our podcasts: on wef.ch/podcasts: Radio Davos - subscribe Meet the Leader - subscribe World Economic Forum Book Club Podcast - subscribe Agenda Dialogues - subscribe Join the World Economic Forum Podcast Club