how can gas be green since it produces co2 throughout it’s lifetime? how can nuclear, solar panels, wind turbines and electric cars be “green” when we’re pollut

how can gas be green since it produces co2 throughout it’s lifetime? how can nuclear, solar panels, wind turbines and electric cars be “green” when we’re polluting the planet while producing them? shouldn’t the focus be on zero pollution during manufacture or are we not there yet?