■ The U.S. will play a big role at global talks on shaping the Paris agreement on climate change.

LONDON — The United States will play a big role at global talks next month on shaping the Paris agreement on climate change, to the dismay of some nations that want Washington sidelined because of President Donald Trump’s plan to withdraw from the deal.

U.S. officials have said they will be constructive at the annual 195-nation climate meeting in Bonn, Germany, from Nov. 6-17 to work on a “rule book” for the 2015 Paris plan to shift the world economy from fossil fuels this century.

But other nations are torn between welcoming or berating Washington’s envoys after Trump’s decision in June to pull out.

Washington keeps its place in the talks because the Paris pact stipulates that no country can pull out formally before November 2020.

“The Trump regime really needs to walk away and not hold the rest of the world hostage to the president’s ineptitude,” said Ian Fry, who represents Tuvalu, a low-lying Pacific island nation at risk of rising sea levels and storm surges.

He said that Trump’s pro-coal policies and doubts that climate change is caused by man-made greenhouse gas emissions could undermine urgency at the meeting of officials and environment ministers.

But U.S. delegates at preparatory meetings said they will play a positive role in Bonn, said Nazhat Shameem Khan, chief negotiator of Fiji, which will preside at the meeting.

The U.S. approach “sends positive signals … that this will not be a destructive COP,” she said, using the shorthand for Conference of the Parties. It is not yet clear whether any U.S. political leaders will attend.

Many U.S. allies, including France, Canada and Britain, hope to coax Trump to end up staying in the pact, which is backed by all nations except Syria. Nicaragua, which had judged the deal too weak, ratified it this month.