From an OPP release...
The hot summer days are finally upon us and officers from Peterborough County Detachment of the Ontario Provincial Police (OPP) would like to remind residents and visitors not to leave their pets unattended in parked cars.
With the arrival of warmer temperatures, officers regularly responded to complaints of pets, especially dogs, left unattended in parked vehicles.
This is a reminder for all pet owners about the dangers of leaving animals in parked cars in the summer. Remember, on a hot day, even with the windows open, a parked vehicle quickly becomes like a furnace and presents potentially fatal conditions for pets left inside.
Note that, in some cases, this can lead to charges of animal cruelty being laid upon the owner/driver of the vehicle.