> Now consider that only a tiny, tiny, tiny fraction of seawater is easily accessible. Not saying it’s an economically realistic idea, but on the topic of avai

> Now consider that only a tiny, tiny, tiny fraction of seawater is easily accessible. Not saying it’s an economically realistic idea, but on the topic of availability of seawater it seems like you’d just need to set up your pumping station in a location with a persistent oceanic current, filter upstream and discharge downstream, and you’d be set for thousands of years. The Straight of Gibraltar seems like a good candidate, since the large surface evaporation of the Mediterranean Sea and the comparatively small amount of water it receives from rivers means that there is a permanent current through the straight. (The Mediterranean Sea would evaporate away in about a thousand years without the Straight.) This also makes me wonder if seawater uranium concentration in the Mediterranean Sea is much higher than elsewhere. The current has been in place bringing in seawater and evaporating off the water, leaving behind all non-evaporable minerals, for over 5 million years, and the Mediterranean Sea is much saltier than the ocean in general, suggesting that uranium concentration would also be substantially elevated.