这是个幸运的巧合，因为页岩气的生产将使停止波兰在经济和环境上都不划算的煤炭生产（和消费）补贴变得更具政治可行性。
This is a fortunate coincidence, because shale-gas production would probably make it politically easier to phase out Poland’s economically and environmentally irrational subsidies to local coal production (and consumption).