Uncontrolled and untreated runoff from abandoned mines may release carbon dioxide from bedrock into the atmosphere. For the past 250 years, coal mining has taken place on an industrial scale in Pennsylvania, USA. By 1830, Pittsburgh was burning more than 400 tons of coal daily. This heavy reliance on coal has fueled climate change, but […]
Full article can be found at: https://scitechdaily.com/scientists-discover-a-major-currently-unaccounted-for-source-of-greenhouse-gas/

