BRUNSWICK COUNTY (WWAY) — As temperatures climb into the 90s this Fourth of July holiday weekend, veterinarians are reminding pet owners that extreme heat can pose serious dangers for dogs. Experts say hot pavement is one of the biggest risks. When the air temperature reaches 90 degrees, asphalt can heat up to 140 to 150 degrees — hot enough to burn a dog’s paw pads within seconds. Veterinarians say those injuries are extremely painful and can t…