Related by context. Frequent words. (Click for all words.) 51 Burgas Alexandroupolis pipeline 48 Croatia accession 48 ecologically sensitive areas 48 Danube Delta 47 Odessa Brody pipeline 47 Nord Stream pipeline 47 Burgas Alexandroupolis 47 Danube delta 46 Odessa Brody 46 Burgas Alexandroupolis oil 45 Baltic Sea 45 primeval forest 44 Nord Stream 44 tér 44 exclave 43 wetlands 43 trans Caspian 43 Vltava River 43 Yamal Europe 43 Alaska Tongass 43 hydro electric dam 42 Bosporus Strait 42 Druzhba pipeline 42 Karakoram Highway 42 Alexandroupolis 42 Elbe River 42 wetland 42 Saemangeum 41 South Fraser Perimeter 41 Carpathian Mountains 41 Dimitrovgrad 41 Nord Stream AG 41 Druzhba 41 Trans Siberian Railway 41 Amur River 41 ecologically fragile 41 buffer zone 41 Pécs 41 forests 41 Ma'ale Adumim 41 virgin forests 41 ecologically sensitive 41 gravel extraction 41 Kerch Strait 41 Kaliningrad Region 40 Oak Ridges Moraine 40 Separation Wall 40 panther habitat 40 Danube River 40 Tarkine 40 Durres 40 grizzly bear habitat 40 greenbelt 40 Lake Ohrid 40 Lake Baikal 40 lynx habitat 40 Tipaimukh dam 39 Burns Bog 39 Ruhr region 39 separation barrier 39 Chongming Island 39 Sofia Municipality 39 Maale Adumim 39 Tipaimukh Dam 39 Stream pipeline 39 biosphere reserve 39 Žilina 39 Strabag 39 dualling 39 Waterton Lakes National 39 railway 39 Souflias 39 Tiefensee 39 Gdańsk 39 waterway 39 Preah Vihear Temple 39 Azov Sea 39 buffer zones 39 Poznań 39 wildlife habitats 38 airspaces 38 Ignalina 38 Gliwice 38 Boreal Forest 38 environmentally sensitive 38 clearcuts 38 Tongass National 38 Terzigno 38 Annexation Wall 38 Qinghai Tibet railway 38 watercourse 38 Komi Republic 38 Veliko Turnovo 38 Carpathians 38 timber harvesting 38 transboundary 38 Trans Caspian 38 Belene nuclear 38 Danube 38 Liepaja 38 Silistra