Friday was a day for speechmaking at the United Nations annual climate conference known as COP28, as heads of state each gave short speeches to deliver their views on the planet’s climate crisis, what their nation is doing and what they think others should do.

Michigan officials approved a $500 million plan Friday to encase in a protective tunnel a portion of an aging oil pipeline that runs beneath a channel connecting two Great Lakes, leaving just one more regulatory hurdle for the contentious project.

The Liberal government had to delay its long-promised regulations to cap emissions from oil and gas production in Canada because of two recent court decisions forcing Ottawa to tread more carefully on climate policy affecting provinces, Environment Minister Steven Guilbeault said Friday.

LONDON (AP) — The OPEC oil cartel led by Saudi Arabia and allied producers including Russia made another big swipe at propping up lagging crude prices Thursday, expanding some output cuts into next year and bringing up-and-coming oil supplier Brazil into the fold.

Canada’s image at the world’s signature climate negotiations could be complicated by infighting, some observers fear, as two of the federal government’s ardent critics at the provincial level look to capture attention at the United Nations climate summit known as COP28.

The Conservatives dialed up the pressure on the Senate on Tuesday to vote in favour of a carbon-pricing bill, all the while accusing the Liberals of trying to intimidate senators into delaying the bill.

Well before Alberta Premier Danielle Smith started talking about the Sovereignty Act, Ottawa was already taking steps to address the province’s concerns about being forced to prematurely shut down its natural gas power plants, says federal Energy Minister Jonathan Wilkinson.

The oilsands industry group that has proposed building what would be one of the world’s largest carbon capture and storage projects says it is more confident than ever it will go ahead with construction.

Premier Danielle Smith invoked Alberta’s sovereignty act on Monday to implement new measures in her fight against Ottawa’s looming clean electricity rules while conceding she didn’t need the act to put the changes in place.