stop Dog Shelters from putting animals to sleep for over crowding

I am starting a petition to stop the killing of animals just because the shelters believe they are to crowded. If a Shelter is to crowed already then they should not take the dogs in. The animals have a better chance of being on the streets and living, than being taken in and being killed just because there is no room. No Kill shelters are what we want. Lets work together to get it.