What history suggests about +3 to +4 degrees in sea level rise!

Study of ancient caves in Europe show how high sea levels should rise when temps go up 3 or 4 degree C.
You can figure about 20 to 60 feet (7 to 20 meters).
A study published in Nature looks at what water levels might look like in a +3 world.
The article is summed up in Phys.org.... Scientists discover evidence for past high-level sea rise.
Of course, you can always model the global warming on earth to see where we land with +2 or more degrees.
A scary study just out finds that ice sheets are melting from below at between 10 and 200 times faster than originally expected!