The real concern with sea rise (to those scientists, ecologists and environmentalists honest about it) is the activation (as happened in  the earthquake/tsunami  in Fukushima, Japan ) of nuclear reactors unleashing radiation if they go under water with no adequate time to shut them down...it looks now as if the arctic glaciers will be completely melted by the end of summer, and that is a grave concern in that area and many other areas environmentally (huge methane release for one). SO, it does not help if , as we have seen for weeks around the world, cover ups are going on as to the industrial pollution (such as oil spill) also activated due to flooding-that is exactly what happened in Texas last year...
http://insideclimatenews.org/news/13062016/Texas-oil-spills-flooding-photographs-no-response-railroad-commission