In our Climate Story of the Week, Rob Jackson, chair of the Global Carbon Project, a senior fellow at Stanford’s Woods Institute for the Environment and Precourt Institute for Energy, a professor of earth science at Stanford University, and the author of Into the Clear Blue Sky: The Path to Restoring Our Atmosphere (Simon & Schuster, 2024),  offers a hopeful vision for addressing the climate crisis and an argument for redefining our most urgent goals. To repair the climate, he argues, we need to actively restore the atmosphere to pre-industrial levels of greenhouse gases.