The failure of recent global talks in Busan, South Korea, to produce a landmark treaty to combat plastic pollution, has underscored the complexities and challenges of addressing one of the planet’s most pressing environmental and climate issues.

More than 100 countries want the treaty to limit production as well as tackle cleanup and recycling, which is essential to address chemicals of concern.

The White House said Tuesday it is disappointing that negotiators could not strike a legally binding deal to address plastic pollution during a high-profile summit in South Korea.