Environmentalists and Indigenous leaders held signs in front of the United Nations buildings in Geneva where talks for a global accord to end plastic pollution are taking place.

Negotiations to debate the terms of a global treaty to curb plastic pollution are proving difficult, the European Union environment commissioner said on Tuesday.

As nations began a second week of negotiations Monday for a global accord to end plastic pollution, an artist heaped piles of plastic garbage onto a large sculpture in front of the United Nations office.