As solar energy is rapidly becoming the world's largest renewable power source, new research from McGill University offers a clearer picture of how much land that growth could require and how smarter choices could mitigate solar energy's land footprint. "Solar photovoltaics are poised to become the largest renewable energy source globally by 2029, but both data and methods are lacking to understand the consequences of large-scale growth to land," said Sarah Marie Jordaan, Associate Professor in McGill's Department of Civil Engineering jointly appointed at the Trottier Institute for Sustainability in Engineering and Design (TISED) and the Department of Civil Engineering, and Director of the Energy Technology and Policy Assessment (ETAPA) research group.