Delegations from nearly 200 countries are gathering in Paris to work on a Global Plastics Treaty.
It's the second round of talks on an internationally binding agreement, which will lay out how to address plastic pollution globally.
The UN Environment Assembly aims to finish negotiations by the end of next year.
Tearfund's Claire Gray says plastic production doubled between 2000 and 2019, and it's badly affecting people living in poverty.
She says about one in four people have no access to waste management and must burn or dump their rubbish, causing huge health impacts.
LISTEN ABOVE

Kevin Putt: Former Springbok previews the final Greatest Rivalry test between the All Blacks and Springboks
02:18

Leon Panetta: Former Defence Secretary and CIA Director on the US-Iran war
08:17

Graeme Edgeler: Constitutional law expert on an MSD review which found more than 30-thousand cases, where benefits and payments were wrongly suspended
04:04