Photo: The Canadian Press

A demonstrator holds up a placard with writing reading in Italian "Sicily reacts to the G7 in Taormina" ahead of an anti-G7 rally, in Giardini Naxos, near the venue of the G7 summit in the Sicilian town of Taormina, Italy, Saturday.

Seven wealthy democracies ended their summit Saturday in Italy without a unanimous agreement on climate change, as the Trump administration plans to take more time to say whether the U.S. is going to remain in the landmark Paris accord that fights climate change.

The other six nations in the Group of Seven agreed to stick with their commitment to implement the 2015 Paris deal that aims to rein in greenhouse gas emissions to slow down global warming.

The final G-7 statement issued after two days of haggling in the Italian seaside town of Taormina said the U.S. "is in the process of reviewing its policies on climate change and on the Paris agreement and thus is not in a position to join the consensus on these topics."

Trump tweeted he would decide on Paris next week. The surprise announcement on the final day of the U.S. president's lengthy international trip comes after he declined to commit to staying in the sweeping climate deal, refusing to give in to intense international pressure from his peers at the summit.

German Chancellor Angela Merkel called the G-7's discussions on climate "unsatisfactory."

Italian Prime Minister Paolo Gentiloni, who chaired the meeting, said the other six "won't change our position on climate change one millimeter. The U.S. hasn't decided yet. I hope they decide in the right way."

Gentiloni said climate was "not a minor point" and that he hoped the United States would decide "soon and well" because the Paris accords "need the contribution of the United States."

French President Emmanuel Macron also chimed in on the climate issue, praising Trump's "capacity to listen." Macron said he told Trump it is "indispensable for the reputation of the United States and the interest of the Americans themselves that the United States remain committed" to the Paris climate agreement.

The G-7 leaders had better luck finding agreement on the other problematic topic at the summit, trade. They restored a vow to fight protectionism — the use of import taxes and skewed regulations that favour domestic producers over their foreign competitors. The no-protectionism pledge had been a part of previous G-7 statements but was omitted after a meeting of the group's finance ministers' earlier this month in Bari, Italy. This time the G-7 leaders reiterated a "commitment to keep our markets open and to fight protectionism."

The Trump administration has argued that trade must be balanced and fair as well as free. His Treasury secretary, Steven Mnuchin, says the United States reserves the right to be protectionist if trade arrangements are unfair to U.S. companies and workers.

However Trump's position appeared to be addressed by new language in the final G-& accord that said the member countries would be "standing firm against all unfair trade practices."

The leaders also agreed on two other topics: closer co-operation against terrorism in the wake of the concert bombing in Manchester that killed 22 people, and on the possibility of putting more sanctions against Russia over its conflict with Ukraine if Russian behaviour requires that.

Alden Meyer, the director of strategy and policy for the Union of Concerned Scientists, an advocacy group in Washington, said the discord over climate change was unusual for G-7 meetings.

"There have been differences, to be sure, in some past summits, but not a sharp open split like this," he said.

Meyer said many U.S. states, cities and companies are moving forward on climate action while the Trump administration is "waffling" on the Paris Agreement.