The German news magazine Der Spiegel is sticking to a story claiming Prime Minister Justin Trudeau asked German Chancellor Angela Merkel to remove references to climate change from an upcoming G20 statement.

In Merkel’s G-20 Climate Alliance is Crumbling, published Friday, Der Spiegel claimed Trudeau asked Merkel to remove mentions of the Paris accord on climate change from the final communique of the upcoming G20 meeting in Hamburg, Germany to appease U.S. President Donald Trump.

The article goes on to describe Merkel’s disintegrating alliance on climate policy among global leaders.

The Prime Minister’s Office asked Der Spiegel to publish a statement of its own about the article, which has been posted at the bottom of the story.

“The suggestion that our approach has changed or that the Prime Minister was in favour of removing the Paris Agreement from the G20 Action Plan is incorrect,” wrote Cameron Ahmad, Trudeau’s press secretary, in the statement.

But Der Spiegel attached its own statement following the PMO’s, which effectively stands by the authors’ original sources.

“Der Spiegel would like to stress that the article did not claim Prime Minster Justin Trudeau told Chancellor Angela Merkel that he would call his commitment to the Paris Agreement into question,” the statement says.

“However, sources within the government in Berlin told Der Spiegel that the prime minister suggested to Angela Merkel to keep references to the Paris treaty out of the G20 declaration in Hamburg.”

The German government backed the PMO’s rendition of events Wednesday, Reuters reported.

“I would like to add the following in the name of the chancellor: The prime minister did not ask her to delete all references to the climate agreement from the draft G20 document,” said government spokesperson Ulrike Demmer, according to the wire service.

Trudeau was asked about the Der Spiegel article by NDP Leader Thomas Mulcair Wednesday afternoon. Mulcair said Trudeau could release a transcript of his recent conversation with Merkel.

“We remain committed to the Paris accords,” Trudeau said in reply. “I have said that to every world leader that I have spoken to. We have pushed for that. We were an instrumental part in making sure it was a strong statement of support from the six G7 countries.

“We are moving with Paris. We continue to push so it becomes part of the G20 communiqué. Leading on climate change is what Canadians expect and is exactly what this government is doing.”

References to Paris made it into the final communique of the G7 meeting in Taormina, Italy held on May 26 and 27, but the U.S. did not voice its support in the document. Trump announced plans to pull out of the Paris accord the next week.

G7 environment ministers were in Italy on June 11 and 12 to hash out differences over Paris, but the U.S. remains at odds with other countries.

The G20 meeting in Hamburg is scheduled for July 7 and 8.