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...
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.
This means that while feral cats have a breeding season, with kittens born in the spring and early autumn, your house cat can go into heat at any time, and will probably do so every three to four weeks.