if they used the heat of the sun to melt sand to make glass stilts, then the solar farms cold be raised above the surface to grow crops underneath that would not suffer from excessive soil moisture depletion from evaporation.

Also, use excess power to pump desalinated seawater inland. tbh, this couldbe rolled out across any desert area near to the sea.

If you grew coppiced trees underneath and then sink the wood into the sea below 100m or so, he wood will continue to sink and place the captured carbon beyond return to the atmosphere. I dunno, do this to Australia, Sahara and Arabian deserts and you might manage to keep atmospheric CO2 down while we work out how to get polticians who give a shit

keep to the Fen Causeway