Skepticism on Mass Tree Planting as Climate Solution

Thomas Crowther, former UN chief scientific advisor, advocated for caution in mass tree plantations as a climate solution at COP 28. He highlighted that newly created forests have limited carbon drawdown capabilities and can harm biodiversity. Crowther's previous study on 1.2 trillion additional trees led to a tree planting frenzy, later corrected to acknowledge preserving existing forests as more impactful.