As global temperature rise continues, intensifying heat waves and water scarcity in many regions, there is a growing need to make our oceans drinkable. There are currently as many as 20,000 desalination plants around the world, but they often operate at an environmental cost. This new technology could solve that issue. Two years ago, Ethiopia became the first country in the world to ban the import of fossil fuel-powered vehicles — a move that's transforming its transport system. More than 100,