Global Warming --> 0.2 mm Rise in Ocean Levels Each Year

Link here to scientific article on undersea volcanic explosions.

There are any number of data points that might interest folks who are interested in an honest discussion of global warming, but this is the paragraph that caught my attention:

Co-author Professor David Vaughan (BAS) says,"This eruption occurred close to Pine Island Glacier on the West Antarctic Ice Sheet. The flow of this glacier towards the coast has speeded up in recent decades and it may be possible that heat from the volcano has caused some of that acceleration. However, it cannot explain the more widespread thinning of West Antarctic glaciers that together are contributing nearly 0.2mm per year to sea-level rise. This wider change most probably has its origin in warming ocean waters."

That was a "cut and paste" -- no typos, unless the original article is in question.

Let me repeat the the specific entry in that paragraph: 

"...the more widespread thinning of West Antarctic glaciers that together are contributing nearly 0.2mm per year to sea-level rise."

I have been visiting beaches along the New England coast for the past three years. There is no way that a 0.2 mm rise in the sea level on an annual basis is predictable or reproducible. And, just for sake of argument, after 100 years, that would be 20 mm? That would be 2 centimeters? Hello.....am I missing something?  One inch = 2.54 centimeters, so we're talking about less than an inch rise in sea level over the course of 100 years assuming every assumption, every prediction for the next 100 years is accurate. Let's say the ocean does rise one inch over the next 100 years; the Dutch handled the sea just fine, and that was in an earlier era.

No doubt I am missing something, but this "0.2 mm" number has been posted before as the scientific prediction in rise in sea level due to global warming. Wow. And on that, the EPA wants to stop the US from shipping coal to China.