A revolution in the renewable energy source domain is picking up speed after a new study released by the International Renewable Energy Agency (IRENA) revealed plummeting costs for wind and solar power. The International Renewable Energy Agency notedof competitiveness between 2013 and 2014. As Grist's David Roberts points out in from the report,power from geothermal, hydro and onshore wind are in the same competitive price range as traditional fossil fuels. (MORE: ) Since the end of 2009, solar photovoltaic (PV)...

Brazil's worst drought in 80 years has brought a town back to life, but not how you would expect. In 1969, the Brazilian government dammed the Jaguari River near Sao Paulo and , Reuters says. Over four decades later, as the Jaguari River has dropped to 98 feet below its normal levels, remnants of the town are popping out of the water. (MORE: ) Bricks, ruined buildings, trees and old benches are resurfacing and kindling nostalgia. Former Igarata resident Irene...

The United States will likely experience 'megadroughts' the magnitude of which haven't been experienced in a millennium, due in large part to man-made climate change, a newstudy conducted by NASA, ColumbiaUniversityand Cornell University scientists said. The study analyzed climate models and tree ring records in portions of at least 16 states and found that global temperature rise due to man-made climate change, and not a lack of precipitation, could increase the chance of the West and Southwest experiencing a megadrought...