Simon Stiell, executive secretary of the U.N. Framework Convention on Climate Change, laid out priorities ahead of annual climate talks in November, and encouraged countries to prepare stronger ...

UN climate chief Simon Stiell has called this latest round of national pledges "the most important policy documents of this century". Yet just a handful of major polluters handed in upgraded ...

U.N. Climate Secretary Simon Stiell said that more than 170 countries have told his office they are working on their national plans, so he’s not worried. He emphasized quality over timeliness.

U.N. climate chief Simon Stiell said last week most countries have indicated they will still produce their plans this year. “Countries are taking this extremely seriously, which isn’t ...