Stephen Donofrio, director of Forest Trends’ Ecosystem Marketplace project, and co-author of the State of the Voluntary Carbon Markets 2021 report, explains to Ian Welsh why the carbon markets are set to exceed $1bn in 2021. He says why he thinks they will continue to grow as companies voluntarily take action to decarbonise their operations and broader impacts as far as they can, using credible offsets to account for what’s left.