Heatstroke kills dogs rapidly and can cause permanent organ damage in survivors. Prevention through informed owner behavior is entirely achievable.
Heatstroke is a preventable welfare emergency that kills hundreds of dogs every summer through owner ignorance or negligence. A dog in a parked car on a warm day experiences temperature rise faster than most people realize: a 22-degree day can produce 47 degrees inside a car within an hour. The dog pants desperately, becomes distressed, collapses, and may die before the owner returns. There is no safe time to leave a dog in a car in warm weather. This is not a difficult welfare principle to implement - it requires only awareness and the decision to leave dogs at home.