Same way we survive - air conditioning. :) They are house dogs. When they are outside, they have lots of shade and water. Don't ever shave them. It screws up their coat - since they have two. The thick coat also insulates them somewhat against the heat. Even on the hottest days, both of ours would go lay out in the sun. :) The softer undercoat is what they shed, about twice a year for ours. Brushing often helps, but you could honestly brush for days and not get all of the hair off of them. A friend in Florida that has three has a special blower to remove a lot of the undercoat. It creates quite the snow storm though. :)
