Lignite mining: Greece's dirty secret - in pictures | Coal | The Guardian
The Acid Sludge Streaming Out of Germany's Coal Mines | WIRED
Coal's long farewell – DW – 05/01/2015
A Lignite Mine Or Lignite Quarry Is A Open-cast Mine Where Lignite Is Extracted. Brown Coal Mines Are Mainly Known From Germany, Poland And The Czech Republic Stock Photo, Picture and Royalty
Germany closes last coal mine | Synergia Foundation
Life after lignite: how Lusatia has returned to nature | Mining | The Guardian