The U.S. president says he will impose tariffs on Canada and Mexico starting tomorrow. Canada is trying to prepare. Ottawa says there are countermeasures ready and waiting, depending on what Donald Trump actually does. That uncertainty is causing stress for businesses waiting to see what happens. We have a story from Windsor, Ontario – home to major auto assembly plants. Full tariffs could mean mass layoffs by the end of the week. Workers there say they are anxious about what comes next.

And: Picking up the pieces of the Trump-Zelenskyy relationship. Ukraine’s president Volodymyr Zelenskyy is leaning on Europe, which is trying to form “a coalition of the willing” to protect his country.

Also: Who owns Antarctica? The short answer: no one. But the long-term answer could get more complicated, as countries eye fishing and mineral access to the continent. Does it need more protection?

Plus: Ontario changes screen protocol for cervical cancer, Trudeau meets King Charles and more.

"A once in a generation moment" for Europe's security. That is how Britain's Prime Minister Kier Starmer is framing Sunday's summit, aimed at achieving peace in Ukraine. In attendance was Justin Trudeau along with the leaders of more than a dozen European countries. The summit was planned some time ago, but it's taking on added significance after Friday's tense meeting between Donald Trump and Volodymyr Zelenskyy.

Also: The White House is again sending mixed signals about its threatened tariffs. The U-S seems poised to impose the sweeping measure this Tuesday. But it's still unclear, if those tariffs will be as steep as originally planned.

And: Around this time next Sunday, the Liberal Party will elect its new leader. Voting is already underway, but a voting app that was supposed to make the process simpler and more secure is now causing issues. 

Ukrainian president Volodymyr Zelenskyy is searching for calmer waters across the pond - one day after a heated confrontation with U.S. President Donald Trump and Vice President JD Vance in the Oval Office. By contrast, a meeting with Britain's Prime Minister Saturday was cordial and supportive. And comes just ahead of a European summit looking at Ukraine's future after three brutal years of war.

Also: A Canadian Navy vessel has reached Antarctica. Now, the team of scientists on board is getting down to work to better understand how climate change has altered the Southern Ocean. You'll hear from CBC's International Climate Correspondent, who's onboard the ship.

And: The Latvian animated movie 'Flow' could soon take home Oscar gold. Its the first movie from the Baltic country to ever be up for an Academy Award. We'll take you to Riga...where Latvians are celebrating the film as a source of national pride. 

With Ukraine's Volodomyr Zelenskyy seated next to them, U.S. president Donald Trump and Vice-president J.D. Vance berate, scold and mock him and his country, even suggesting he provoked Russia into invading. Ukraine's President didn't take it quietly. And the battle of words has thrown any deal making – whether for peace or for minerals… into serious question.

The confrontation has prompted reaction around the world, with European leaders coming out quickly to say they stand with Ukraine. Russian media has been gleeful – saying Zelenskyy got slapped.

And: As Ukraine awaits the fallout from Volodymyr Zelenskyy's disastrous encounter with Donald Trump, Canada is waiting to see what happens Tuesday when the U.S. is set to begin imposing tariffs on Canadian exports.

Also: Aid workers in Bangladesh say they're running out of options after the Trump administration abruptly paused foreign aid for 90 days. More than one million Rohingya refugees depend on that funding for essential services.

Plus: Historic majority for Ontario’s premier, bird flu and the price of eggs, and more.

U.S. President Donald Trump says Canada should expect tariffs on March 4th. He claims drugs are “pouring” over the border at unacceptable levels. Prime Minister Justin Trudeau says Canada will have an immediate and extremely strong response.

And: UK Prime Minister Keir Starmer is in Washington. Like the president of France earlier this week, Starmer is trying to get Trump onside with Europe on how to deal with the war in Ukraine. European leaders are worried about Trump’s willingness to work with Russian President Vladimir Putin without including Ukraine’s President Volodymyr Zelenskyy.

Also: The families of two murder victims say it’s an emotional day, after the discovery of possible human remains at a landfill north of Winnipeg. Morgan Harris and Marcedes Myran were murdered by a serial killer in 2022. Their families and communities have been fighting to have the landfill searched for their bodies. The identification process might take weeks.

Plus: Antarctic climate research, provinces try to improve primary care, Gene Hackman remembered while investigation continues, and more.

They’re on, they’re off, they’re now, they’re not. Canadians are trying to figure out what’s happening with tariffs threatened by U.S. President Donald Trump. There is more confusion today, as he claims they are full steam ahead, but his commerce secretary says there is still a chance to avoid them.

Trump says Ukrainian President Volodymyr Zelenskyy will be in Washington on Friday to sign an agreement on rare earth minerals. Trump says the deal is payback for the aid the U.S. has provided during the war. But what is it Trump is so keen to get from Ukraine? The CBC’s Chris Brown visits mines there to find out.

Mortgage defaults are up across Canada, with BC feeling the worst of it. Mortgage holders who are falling behind in their payments are also carrying substantially higher balances, likely because of pre-pandemic interest rates.

Plus: Ontario election tomorrow, Carney accused of lying, and more.

It’s the furthest south the Canadian navy has ever gone. HMCS Margaret Brooke is taking part in a research expedition to Antarctica. The icy continent is warming at an accelerating rate and 15 scientists from across Canada will be measuring the extent of the changes. And CBC’s international climate correspondent Susan Ormiston is on board. 

Contenders for the federal Liberal leadership are still in Montreal… this time for the English language debate. Yesterday’s French debate highlighted who was more comfortable in the language, and candidates spent more time targeting U.S. president Donald Trump than directly attacking each other. 

It’s been considered eliminated in Canada since 1998, but cases of measles still surface every year – mostly connected to international travel. This year, there have already been about 80 cases detected in this country, causing some concern in public health circles about dipping vaccination rates. 

Plus: Newfoundland premier Andrew Furey steps down, access to primary care, Canadian officials in Washington promoting Canada, Alberta minister steps down over health procurement, measles spike, and more.

It’s been three years since Russia invaded Ukraine. Prime Minister Justin Trudeau is in Kyiv, with about a dozen European leaders, to show support for Ukraine. One leader who is not there – France’s Emmanuel Macron, who is in Washington, trying to represent Europe’s interests. But he has an uphill climb… the U.S. today voted against a United Nations resolution condemning Russia’s invasion. U.S. President Donald Trump does say Ukrainian President Volodymyr Zelenskyy will be in Washington soon to sign a critical minerals deal. Trump sees that as a crucial part of his plan to end the conflict.

The man who is presumed to be Germany’s next chancellor says Europe needs to be more united, saying it’s “five minutes to midnight”, because of shifting geopolitics, including less support from the U.S. Friedrich Merz’s party won the most seats in yesterday’s election. The conservative centrist party will need a governing partner though. And it is not expected to turn to the party that won the second-most seats… the hard right AFD.

Contenders to be Canada’s next Prime Minister are in Montreal for the first debate of the campaign. The French language debate will be a crucial testing ground for the four candidates who are left.

Plus: the Pope's health, ammunition costs, funding of climate education and more.

On Monday, it will be three years since the start of Russia's full-scale invasion in Ukraine. Negotiations to end it are in the works, but those on the front lines have their doubts. You'll also hear how Ukrainian-Canadians are marking the anniversary.

Also; This country will have a new prime minister, in two weeks time. That's when the Liberal Party selects its next leader. The four remaining candidates are set to square off this week in back to back debates.

And: Hockey legend Wayne Gretzky is revered in this country. But after he didn't show Team Canada much love at the Four Nations final against the U.S. - you'll hear why some Canadian hockey fans want to put the Great One in the penalty box.

Plus: Israel sends tanks into the Occupied West Bank, Elon Musk's email to federal employees, The use of AI in Oscar nominated films, and more.

In the wake of the Delta airlines plane crash earlier this week, Sunwing has cancelled all of its outbound flights from two of Canada's busiest airports. The airline says it's prioritizing flying back customers who are currently delayed in destinations. But many of those passengers are still looking for answers. 

Also: Germans will head to the polls tomorrow to elect their next government - and all anyone is talking about is the AfD. The anti-immigrant and anti-EU party is polling a close second in the race. You'll hear from Abby Kuhathasan in Berlin on what to expect.

And: The pendulum on parenting styles has swung drastically over the decades. The style known as 'gentle parenting' - based around guidance and empathy - has been a go-to for many in recent years. But some modern parents say, being so gentle is just too hard.

Plus: Donald Trump fires top military commanders, Austria's struggle to form government, Placing bets on awards shows, and more.