In some coastal cities, subsidence now exceeds absolute sea level rise up to a factor of ten

About time somebody worldwide caught up with the going-down of the problem. Texas has mis-managed it in the past, but started regulating it as early as 1975!
The 10 feet (>2500 millimeters!) of subsidence in Baytown is summarized below
In fact, in the critical areas along Galveston Bay, the land surface has sunk as much as 10 feet since 1906! Experts have been studying the subsidence phenomena for almost 100 years, and with each hurricane we have weathered, we’ve seen subsidence and flooding problems worsen.
One dramatic example of this was in the Brownwood subdivision, a coastal community of Baytown where almost continual flooding due to subsidence caused the area to eventually be abandoned.

See also more plots:
http://mapper.subsidence.org/
from this web site, where additional maps and data are available.
http://www.hgsubsidence.org/

The Harris-Galveston Subsidence District is a special purpose district created by the Texas Legislature in 1975. The District was created to provide for the regulation of groundwater withdrawal throughout Harris and Galveston counties for the purpose of preventing land subsidence, which leads to increased flooding. The District’s enabling legislation is found in Chapter 8801 of the Special Districts Code.
We achieve our goals through a combination of efforts. Of great importance is controlling subsidence by managing how we use our groundwater resources. This is accomplished through the careful regulation of groundwater withdrawals, working in collaboration with surface water suppliers. And just as significant – short-term and long-term – is the teaching and implementation of water conservation throughout our communities, neighborhoods, businesses, and households…all the way down to the youngest family members.
We are frequently asked, “What, exactly, is subsidence and how are groundwater resources managed? And how do we successfully teach our water users to conserve?”
Let’s start with subsidence. Webster’s defines it as “to sink, to fall to the bottom; to settle.” Well, that’s exactly what some of the land in our area has been doing since the 1920’s. Prior to World War II, areas with significant industrial and petrochemical development, such as Baytown and Texas City, experienced significant, localized subsidence. This trend continued during and after World War II, when rapid industrial and municipal growth began to create broad, regional patterns of subsidence, raising serious concerns over flooding.
In fact, in the critical areas along Galveston Bay, the land surface has sunk as much as 10 feet since 1906! Experts have been studying the subsidence phenomena for almost 100 years, and with each hurricane we have weathered, we’ve seen subsidence and flooding problems worsen.
One dramatic example of this was in the Brownwood subdivision, a coastal community of Baytown where almost continual flooding due to subsidence caused the area to eventually be abandoned.
In 1975, as a result of area residents and local governments becoming increasingly alarmed by the continued impact of subsidence on economic growth and quality of life in the region, the Harris-Galveston Coastal Subsidence District was created by the 64th Texas Legislature as an underground water conservation district. Our main role at that time was to provide for the regulation of the withdrawal of groundwater to control subsidence. The challenge had begun. In that first year, we diligently gathered information on the Chicot and Evangeline aquifers. We analyzed planning information to learn more about water usage and water supply within our boundaries, and we began implementing regulatory procedures that led to our first groundwater regulatory plan