2012–2014 Romanian protests against shale gas
The 2012–2014 Romanian protests against shale gas were a series of protests in major Romanian cities against exploitation of shale gas through controversial method of hydraulic fracturing. The main causes of these protests were the pollution of groundwater and environment, but also the threat of generating earthquakes.
Source: Wikipedia — 2012–2014 Romanian protests against shale gas (CC BY-SA 4.0)