Either pull a Dutch move and build some canals, or grow rice...
Adapt or vanish
Edit: reread and saw salt water. Goodluck!
Mangrove!
I'm sure there must be some edible plants that like salt?
I know! Lets do nothing and continue growing our populations appetite. Surely this will lead to infinite growth.
Time for blade runner style indoor agriculture
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
Anti-science, inactivism, and unsupported conspiracy theories are not ok here.