With rising seas threatening the Samoan village of Lalomalava, the South Pacific island nation used climate adaptation financing in the 2010s to build a seawall that would help protect homes and a main tourism resort.

But the barrier, once built, wasn't long enough to shield the entire village, leaving some families to face even bigger waves diverted along the shore. And the tourists weren't thrilled about the rock walls that replaced the resort's sandy beaches.

This is just one of many cases of climate financing gone awry...