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
What Is Truth What Is Truth "What Is Truth" is a single by American country music artist Johnny Cash released in February 1970. Generally viewed as a protest song, a rarity in country music at the time, the simple criticism of the Vietnam War, and war in general, as well as the stereotypical view of many politically liberal hippies made the song a major crossover hit. The song peaked at number 3 on the "Billboard" Hot Country Singles. It also became Cash's 12th Top 40 single on the Hot 100 chart, peaking at number 19, and his 2nd Top 10 single on the