A doctor diagnosed a Canadian patient with “climate change” after a slew of health problems suddenly grew worse amid a heatwave.

A patient came into the emergency room in Kootenay Lake Hospital in Nelson, British Colombia, struggling to breathe. Dr. Kyle Merritt assessed that worsening wildfire smoke in the region exacerbated the patient’s asthma, Times Colonist reports. The doctor clinically diagnosed the patient with “climate change.”