I dont see any massive changes on any of the coastline I have been near for 40yrs.
Only where groynes have been built that disrupts currents and sand deposits causing erosion down-current of where the coastline was altered.
Otherwise the beach is still in the same spot it was when I was a kid.
How long do we wait for the catastrophic events?
100yrs
1000yrs
10000yrs???
