Granted it's pretty rare that we get any kind of heat here in Ireland, it's a common occurrence in the US. Veterinarian Dr. Ernie Ward decided to demonstrate just how hot it can get in a car on a summer's day in North Carolina.
The doctor cracks open four windows in the jeep and sets himself down for the challenge. Pretty soon, it reaches up to 117 fahrenheit - that's 47 degrees in our money - inside the car, even with windows open. You can see the vet physically sweat and get more and more anxious as he explains the process dogs go through when they're in this kind of heat.
So there you have it - don't leave your dogs in a car. Or anything else, for that matter.