Researchers have found heavy metals leaking from unlined coal ash ponds near 21 power plants in five US states: Tennessee, Kentucky, Georgia, Virginia, and North Carolina.
In an age of rapid global population growth, demand for safe, clean water is constantly increasing. In 2010 the United States alone used 355 billion gallons of water per day. Most of the available fresh water on Earth’s surface is found in lakes, streams and reservoirs, so these water bodies are critical resources.
Shadow bands and light bands during a tropical sunset. Photo by Flickr user NOAA Photo Library. CC-BY-NC-SA 2.0
The solar panels of about 40,000 Massachusetts households and community groups cut electricity prices for all of the approximately three million electricity ratepayers in the state, even those without the panels, also called photovoltaics (PV) systems.