Methane is a more powerful greenhouse gas than carbon dioxide, but there is far less of it in the atmosphere and it does not stay there as long. Methane is more than 25 times as potent as carbon ...

Methane also escapes into the air when coal, oil and natural gas are extracted from the Earth. Some farmers collect methane gas from animal waste. The methane can be pumped into the mains gas ...

Burning off excess natural gas (flaring) at oil refinery, Sinclair, Wyoming. (Photo by: Marli ... [+] Miller/UCG/Universal Images Group via Getty Images) The European Union’s methane regulations ...