This iron and water battery could power a more renewable grid
7:25 | Sitting in a row outside of the factory, these giant batteries are the size of freight containers. Powered by vats of iron and saltwater, they’re called iron flow batteries.
Jeffrey Sachs Praises the Youth Activists Suing the U.S. Government & Fossil Fuel Industry
6:19 | A federal judge in Eugene, Oregon, has just ruled that 21 young Americans can proceed to trial in a suit against the Obama administration.
The Teenager Suing the US Government over Climate Change
13:52 | Xiuhtezcatl Tonatiuh is a 15-year-old environmental activist who is traveling to Eugene, Oregon to sue the U.S. government over the issue of climate change.