Seawater Foundation and Integrated Seawater Farming

Ive tried to buy salicornia in the US but with no luck. This wont take off until we can pump consumer money into it.

Mangrove and other salt loving species are natures first line next to the coast. logically this project cannot fail because it is paying attention to how nature establishes growth next to the ocean. In time, humifity will rise and rain will fall when sufficient coastline is reclaimed. Have you noticed any localised changes in the weather around the irrigation sites? I.E more cloud cover than other areas, cooler temperatures were mentioned on your video. I too have noticed a 2-3 degree difference

what about increasing soil salinity??

salicornia uses the salt in its own structure. It can decrease soil salinity even while dumping seawater on it.  this leads to cleaner groundwater inland as well as the water seeping into the aquifer is fresh.

There are a few issues to be considered as well though. What about groundwater pollution for instance.

I live in london and would like to work with this sort of things. What course do I need to do? agriculture?

The concept is exciting. It also seems economically and environmentally[I hope] practical. I do get concerned when an environment gets changed quickly and drastically. But I realize that you are restoring areas that previously had vegetation and the natural filtration that comes with it.
Thank you for you're noble efforts and hope for great success!