US cities choke under wildfire smoke as air quality warnings persist nationwide

**US Cities Grapple with Hazardous Wildfire Smoke as Republicans Call for Canadian Sanctions**

Major US cities across the Midwest, Mid-Atlantic, and Northeast are experiencing dangerous air quality due to widespread smoke from Canadian wildfires. Cities like Chicago, Detroit, New York City, Baltimore, and Washington D.C. have reported hazardous air quality index levels, with some regions reaching the worst pollution levels globally, prompting officials to advise residents to stay indoors and limit outdoor activity. This marks a recurring issue, with comparisons drawn to severe wildfire smoke events that impacted the US in 2023.

In response to the persistent smoke, several Republican lawmakers have threatened Canada with sanctions, blaming the Canadian government for failing to adequately manage its forests and prevent these recurrent blazes. Senator Bernie Moreno (R-Ohio) plans to introduce the "CANADA FIRE Act," a bill that would impose sanctions on Canadian officials, block assets, and revoke visas, while also considering additional tariffs on Canada. Former President Donald Trump also weighed in, attributing the "filthy, polluted, and unhealthy air" to Canada's "Willful Negligence" and suggesting the cost of pollution should be added to existing tariffs.

Canadian Prime Minister Mark Carney and Ontario Premier Doug Ford have addressed the accusations, with Carney emphasizing that fighting climate change is a shared responsibility, including for the United States. Ford suggested that the US could offer more assistance in combating the fires. While some Republican lawmakers have criticized Canada for what they term "chronic under-investment in forest thinning, fuel reduction, and prescribed burns," Canada asserts it has invested billions in wildfire prevention, and officials from both countries have historically cooperated on firefighting efforts. Simultaneously, wildfires are also burning in the US, including in Minnesota and the American West, contributing to the overall air quality issues.