The Newsweek Green Rankings is one of the world’s foremost corporate environmental rankings. We’ve ranked the world’s largest companies on corporate sustainability and environmental impact. We worked to make the rankings as relevant, meaningful and transparent as possible. They’re based on our new and improved rules-based methodology that utilizes only publicly available data—no black boxes here. The project ranks the 500 largest publicly-traded companies in the United States (the U.S. 500) and the 500 largest publicly-traded companies globally (the Global 500) on overall environmental performance.