Greta Thunberg

The Marshall Islands - Majuro - Rusty/Wikimedia Commons / Creative Commons License 2.0

Pacific Island nations that played a key part in the Paris Climate Agreement took a prominent role again this week at the UN Climate Action summit in New York.

Jason DeCrow/AP

UNITED NATIONS — Leader after leader told the United Nations on Monday that they will do more to prevent a warming world from reaching even more dangerous levels. But as they made their pledges at the Climate Action Summit, they and others conceded it was not enough.