Trump threatens to tariff Canada over wildfire smoke choking northern US cities

Canadian leader Mark Carney says both the US and Canada have an equal responsibility to fight climate change, which experts say are worsening wildfire conditions.

First seen 1h ago · latest update 1h ago · World · science

Developing: this story surfaced recently from a single outlet. It appears early by design — expect the confidence score to move as more outlets report (or don’t).