By Cat DiStasio
When it comes to discussions about renewable energy, solar and wind power often take center stage. To a lesser degree, other forms like geothermal energy and hydropower also get some attention. But many people may not be aware that there are many other sources of renewable energy currently in use around the world, all helping to counterbalance the enormous carbon dioxide emissions from burning fossil fuels. Small projects are turning to dirt and microbes, underground stores of…Read more