It has been said that the seas are rising but given that the landmarks in Sydney harbor do not reflect this, could it be that some volucanic Isalands in the Pacific are reseeding into the ocean?
If the seas truly are rising, would not it make more sense to buuild desalination plants that are built to send clean water through to the other side of the Great Divide and at the same time extract hydrogen from that water to generate electricity (true clean energy).
Oh, it's not the climate stupid, it is the money collected from climate taxes that we are interested in.
Just a couple of clarifications:
(i) sea levels don't rise uniformly around the globe. It's not like water in a glass; there's high points, low points, bottlenecks, massive outflow points, currents, tides, deep oceans and shallows etc.
(ii) yes, some very low lying islands subside, erode and also accrete - it's a multivariate, dynamic situation.
(iii) it takes a huge amount of energy to extract hydrogen from water - therein lies the problem - the first law of thermodynamics presents a challenge. Hydrogen is definitely a future fuel source but we need to use other green energy sources to produce it.
(iv) massive irrigation west of the great divide would most likely cause a cascade of environmental and ecological problems. Water doesn't improve soil fertility (in fact, irrigation can cause a lot of soil problems). Australian soils are notoriously low in phosphorus (hence the dependence upon superphosphate fertilizers). We built major cities on all of the most fertile lands.
Unfortunately, It's all pretty complex.