The UN environment chief insisted Monday that talks on a landmark plastic pollution treaty were not a failure, saying important progress was made despite negotiations collapsing without agreement.

Countries negotiating a global treaty to curb plastic pollution have failed to reach agreement, with more than 100 nations wanting to cap production while a handful of oil-producers were prepared only to target plastic waste.

Countries have deadlocked on a United Nations treaty on plastic pollution, according to The Associated Press. The treaty, with an aim of tackling worldwide plastic pollution, faced a hurdle due to negotiators not being able to get past the question of whether it should bring down the planet’s overall plastic while also having mandatory