\" \" More than 2 billion people worldwide live without access to safe, clean water. As the problem is exacerbated by climate change, scientists have come up with a new solution using sunlight, a plentiful resource. That's enough drinking water for four people for one day. Ramping up production for large-scale purification is still in development, but this method is encouraging as an additional means of securing safe water for a growing population. It's time to see the future of clean water in a whole new light.