Geothermal energy in the United States Geothermal Data System (NGDS). Through the NGDS, many older paper archives and drill logs that are stored at state geological surveys are now being digitized and made available for free to the public. The underground hot water and steam used to generate geothermal power may contain chemicals that could pollute the air and water if released at the surface. Hydrogen sulfide, which is toxic in high concentrations, is sometimes found in geothermal systems. Newer methods of generating geothermal power separate the hot steam collected underground from the steam used to power turbines, and substantially reduce the risk of releasing air-polluting
Seeds from the Underground from mainstream media. Seeds from the Underground Seeds from the Underground is a studio album by Kenny Garrett. It was released on April 10, 2012, on Mack Avenue Records and received two Grammy nominations in Best Jazz Instrumental Album and Best Improvised Jazz Solo categories, as well as a NAACP Image Award nomination in Outstanding Jazz Album category, a Soul Train Award nomination in Best Traditional Jazz Artist/Group category, a Jazz Awards nomination for Alto Saxophonist of the Year and an Echo Award win in the Saxophonist of the Year category. The album received a 77/100 score on Metacritic, based