This Portable, Solar-Powered Device Purifies Seawater on Demand

Good News Notes: “Imagine having the ability to purify water anywhere, any time, with one solar-powered device. While that may not be of key importance to many in wealthy nations, it is for the 785 million people around the world who, as of 2017, lacked access to clean drinking water. A group of researchers at the…

Engineer discovers how to extract water from air and sunlight

Good News Notes: “When you have sugar in a bowl, that sugar gets a little clumpy over time,” says Cody Friesen. “Have you ever thought about why?” Friesen, who teaches materials science at Arizona State University, explains that the sugar absorbs moisture from the air around it. “The science term for that is the sugar…

Pakistan’s tree-planting push has a sweetener: more honey

Good News Notes: “When authorities started planting millions of trees in eastern Pakistan’s Changa Manga Forest five years ago, the idea was to bring back life to forest land that had been destroyed by illegal logging, water scarcity and fires. Now that the trees have matured, they are having an even sweeter side-effect – helping…