Abandoned infrastructure one of the biggest polluters in the world – report
www.theguardian.com
Emissions from abandoned coalmines, oil and gas wells globally are larger than any single country except China, the US and Russia

With new satellites that can pinpoint methane emissions, the problem is much easier to identify than even a few years ago. The IEA has found that monitored emissions from satellites are much higher than the official estimates of methane that countries admit to.