A summit of 175 countries and 1,500 scientists began on Monday, at the headquarters of UNESCO in Paris, to achieve a future global treaty. The U.S., China and Saudi Arabia, oil producers, are opposed..

Curbing plastic pollutionis the goal. For five days everyone will look for formulas to "end plastic pollution", when it has been found even on the summits of the Pyrenees and the Himalayas. The goal is to achieve "the most important multilateral environmental agreement since the Paris climate agreement," said the executive director of the United Nations Environment Program.