New Delhi, Aug. 5 -- Nations gather in Geneva Tuesday to try to complete a landmark treaty aimed at ending the plastic pollution crisis that affects every ecosystem and person on the planet.

It's the sixth time negotiators are meeting and they hope the last. A key split is whether the treaty should require cutting plastic production, with powerful oil-producing nations opposed; most plastic is made from fossil fuels. They say redesign, recycling and reuse can solve the problem, while other countries and some major companies say that's not enough.

Only a treaty can mobilize the necessary global action, said Angelique Pouponneau, lead ocean negotiator for 39 small island and low-lying coastal developing states. At home in the Seychelles, ...