Google, the World Resources Institute and 40 other organizations have launched Global Forest Watch, a website that tracks global deforestation in near-real-time. While the site's creators hope to improve forest management, the new ability to "peer into forests" also reveals telling, but mostly discouraging stories: The world has lost over 500 million acres of forest over the last decade, akin to 50 soccer fields every minute of every day, with only a tiny fraction regrown or replanted.