About 8 inches since 1950, and something similar is in the works for the next 40 years. There is evidence behind the greenhouse effect, but it's wildly exaggerated by special interest groups.
Is it in fact rising water or is it subduction, or the land settling?
The reason I ask is that I have a friend who lives down on the mississippi delta... He's watched those tidal flats for all his life, And says it ain't raised even at all. High tide is still in the same place,and so is low.
Now, that is the delta, and not the ocean proper. But if the ocean is 8" higher, you would expect the delta to be too.
