A twist of history and circumstance has left gritty Warsaw with far cleaner air than elegant Krakow.
"Ambulances queue out here on this street" on days when the soot hangs over Krakow. Poland's most picturesque city is trying to fix its air pollution problem.
A year on, Dimiter Kenarov re-examines the shale gas bubble that fueled his investigation into hydraulic fracturing and sustainable energy resources, from Poland to Pennsylvania.
As drilling operators search for shale gas in Poland, residents demand more information about the potential impacts of hydraulic fracturing—fracking—on their communities.
Stephen Sapienza reports on shale gas fracking in Poland for PBS Newshour.
Two States, Three Countries, Four Opponents of Fracking.
Would shale gas be the death or salvation of Poland?
Poland is a test case for shale gas development in Europe, but so far the industry has failed to take off.
The development of shale gas could make Poland energy independent from Russia, but it has also started to erode basic civil liberties in the country.
Edward Sawicki is a farmer from northern Poland, fighting a private war against shale gas exploration. His goal: Leave the slightest trace possible on this earth.
Poland is said to be spearheading the development of shale gas in Europe, but there aren't enough drilling rigs. Dimiter Kenarov goes in search of one.
Poland's leaders think they've found a path to energy independence, but their high hopes could prove premature.