A few considerations: 1) you don't need to fully mitigate the sea-level rise for this to be of value. Even a few cm might make a difference on the margin for ce

A few considerations: 1) you don't need to fully mitigate the sea-level rise for this to be of value. Even a few cm might make a difference on the margin for certain areas. 2) The projects themselves might be a value if we really could increase the productive value of currently arid parts of the land with net-positive environmental impact, so the sea-level rise doesn't matter or let's us do the project without worrying about sea-level drop. If we really had too-cheap-to-meter power for desalinization, then these projects might start to make sense, but it seems too soon to me.