For the past 250 years, people have mined coal industrially in Pennsylvania, U.S.. By 1830, the city of Pittsburgh was using more than 400 tons of the fossil fuel every day. Burning all that coal has ...
The Ministry of Environment, Forest and Climate Change has waived green clearance for pilot projects in underground coal ...
Methane is a potent greenhouse gas. It is released from natural sources (like wetlands) and human activities (coal mining, ...
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