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.
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.