Happy Sunday. It was a heavy news week, but a fascinating one, with stories ranging from smoke-filled skies over New York to a robot dispute in South Korea. Here are the ten stories most worth your time today, and why each one matters.

1. Trump threatens new Canada tariffs over fires sending ‘filthy’ air into US cities (BBC News). Wildfire smoke has turned into a trade dispute, a sign that climate disasters are now spilling directly into diplomacy.
2. US denies Iranian claims it hit civilian infrastructure in latest strikes (BBC News). The fight over what actually got hit matters because it will shape whether stalled talks to end this war can restart.
3. Many Ukrainian soldiers outraged over removal of defence minister, troops tell BBC (BBC News). When frontline troops openly criticize their own government in the middle of a war, it points to a rift that could affect the fight itself.
4. At least two dead in Texas floods ravaging same area where campers died (BBC News). The same valley that lost more than 130 people to floods last year is underwater again, which raises hard questions about warnings and rebuilding.
5. Magnitude 7.3 earthquake strikes off Mexico coast (BBC News). A quake this size near the shore is a real test of tsunami warning systems, and small waves have already been recorded in Chiapas.
6. We just had the first humanoid robot strike ever (Forbes). Hyundai workers in South Korea walked off the line over plans to deploy thousands of Atlas robots, a preview of labor fights coming to many industries.
7. Trump Media to sell instant access to ‘market-moving’ social posts (BBC News). Selling traders early access to presidential posts raises fairness questions that markets have never had to answer before.
8. Taco Bell removes lettuce from menu in US after links to parasite outbreak (BBC News). About 1,645 people in five states have been infected, a reminder of how fragile the food supply chain can be.
9. How these twins’ rare growth disorder could provide the key to preventing cancer (BBC News). People with Laron syndrome almost never get cancer, and understanding why could open a new path for prevention in everyone else.
10. More than 500 Rohingya vanished at sea. What happened? (BBC News). Two boats carrying about 530 people disappeared three weeks ago, and the lack of any real search says a lot about where the world’s attention goes.

That is the roundup for today. All credit goes to the original reporters and publishers linked above. See you tomorrow.