“Taiwan sinking: Subsidence or Global Warming Induced Sea Level Rise?“. Anthony Watts wants you to think that rising sea-levels anywhere on Earth are due to subsidence and subsidence alone. Especially in Taiwan. And if anyone, such as in this AFP news report Rising sea levels threaten Taiwan, suggests that it could be sea-level rise due to Global Warming, they should be flooded with hostile correspondence.
It’s certainly true that uncontrolled groundwater (or oil) extraction can produce significant local subsidence. The problem with Anthony’s attempt at misdirection is that this kind of subsidence is highly variable, even within the affected locality. So it’s kind of hard to use as an excuse to wave away regional sea-level changes.
Come to think of it, this is exactly like Anthony’s discredited obsession with surface station temperature records. Cherry-picked instances invoked in the hope of discrediting the wider trend. We’ll be hearing more mutterings on this topic, I think.