seawater

With concrete canoes, wonder if they ever experimented with Roman seawater concrete, which generates heat when it reacts with water.

We won't be pumping gigga tones of C02 out of the atmosphere and seawater with solar.

It is actually one of the more abundant elements on Earth, especially in seawater [1].

Synfuels, including direct analogs of petrol and diesel, can be created from electricity and seawater.

It's a shame because with the access to seawater and sun, it would be a perfect combination to desalinate with green energy.

Anyone familiar with seawater knows it is not acidic, nor anywhere close.

Mind game: posit construction of one of these cement canoes with Roman seawater cement (but with topology incorporating hollow cylinders in whatever is designated the stern).

While they might be able to recover the items, re-qualifying something that's been dunked in seawater after being dropped from 35km+ is probably a non-trivial task.

The FAQ at your link says that there is no problem with ocean disposal of the brine, which is only twice the concentration of normal seawater.

And I doubt the lake would stay clear after ships drag in seawater.

The seawater instantly triggered a hot chemical reaction.

Most steels (including stainless) become significantly more brittle under stress when exposed to high chloride environments like seawater while under load - much more than standard fracture mechanics would suggest.

Seawater lower basin adds considerably to site count.