Would the world have been a safer and cleaner place without science?

There can be two sides to this.
The world would be safer without them so bombs would never have been made and cause suffering in many countries at war. It would also have been cleaner as toxic wastes from factories and oil spills will not occur to make our environment impure.
The world might also not be safer as some scientific technology have helped and protected us like chemical to make our products safe for consumption. It might not be cleaner as well because scientific technology have been used in cleaning the environment such as chemicals to purify it.