For context, Tuvalu is one of the first countries expected to become completely uninhabitable due to sea level rise:
Much of their land area, along with critical infrastructure, will be below the average high tide by 2050. And future sea level rise will worsen the effects of tides, waves, and storms, greatly increasing the frequency and severity of periodic flooding.
Perhaps the people of Tuvalu should have a good look at how Australia treats any firm of asylum seekers before agreeing to this deal.