IQAir

Meteorologists are seeing things they never thought they would see, like water temperatures approaching 100 degrees and heat indices over 150 degrees - all symptoms of a warming climate

Minnesota has already set a record for the number of days with poor air quality, and persistent wildfires over Canada will mean episodes of thick smoke the rest of the summer.

Weather extremes are trending more extreme over time, and current wildfires and smoke can be traced back to a statistically rare heatwave over Canada last month.