Jason Momoa made an impassioned plea to the United Nations on behalf of the island nations of the world that are drowning due to the effects of climate change .

The Hawaii-born Aquaman star, who is of Native Hawaiian descent, joined world leaders at the UN General Assembly on Friday to review the progress made by the SAMOA Pathway , a UN program adopted in 2014 that aims to address the unique environmental concerns impacting small island developing states .

Momoa called the experience life-changing in an Instagram post.

It takes an amazing team and support system to pull off something like this, he wrote. I am deeply grateful to my wife and children, my mother.