Birds in saline areas
Not only Brent Geese like saltwater. Pink Footed Geese roost in the Wash and other estuaries, in the tens of thousands. Then add in the wading Birds, the Gulls etc. Also remember Birds migrate at night and are attracted to lights. An absolute non starter. By 2030, what price oil? I think we should forget any idea of airport expansion in the UK. In fact I suspect I shall live to see lots of runways and roads grubbed up to turn back into farmland. Have a look at population growth figures, and our future ability to pay for imported foodstuffs. This bubble we are living in will not last for ever. Google exponential growth. As a species the future may not be as good as the present.