I'm not sure on the math on this one. Google says:

>Global sea levels are currently rising at an accelerating rate, measuring roughly 3.6–4.6 mm per year

so in say 30 years time at the higher figure you have 30*4.6mm = 13.8 cm

The sea is broadly at sea level so it's going to be a job to get the "3-7 metres of sea-level rise"?

When ice melts in Greenland and Antarctica there is also a gravity effect