birds coastline construction contrast crane Denmark drilling energy engineering equipment esbjerg exploration floating harbour industrial industry low tide nautical ocean offshore oil platform port power production rig sandbank sandrag sea ship shipping ships skyline supply technology vessel waterfront well wharfage windcarrie alone bank barren distance distant estuary forest girl Great Britain grief hills hope isolated loneliness lonely Look mountains natural nature patience peace sadness sand shore single sit sitting tranquil wait waiting wales water welsh wish wishful wistful woman air architecture chemical chimney coal dioxide emission environment environmental factory fume generator global heat plant pollution power plant sky stack station structure technical tower toxic white