Hybrid and electric cars do not help the environment They still need things like copper, steel, lithium, graphite, cobalt, glass and plastics. These things all need raw materials to be mined, refined, processed and transported. They need road...
Some of these cats may be owned pets that are permitted by their caretakers to go outside unsupervised, some may be tame strays who were formerly owned, but have been lost or abandoned, and some may be feral cats, those with no socialization whose disposition makes them unsuitable as domestic pets.
If they don't have early contact with people, the kittens of stray or feral cats will become feral, too fearful to be handled or adopted. Since a female cat can become pregnant as early as five months of age, the number of feral cats in a neighborhood can rapidly increase if cats aren't spayed or neutered.