Has technology changed the world for better of for worse?

This is for my world issues GCSE project and i would be very pleased if anyone could post their opinions to help, i will put them in my project. Thank you. |||It makes the world better! See, I am typing this with artificial hands. That was not possible in the days of past.|||worse technology saves one probable but starts 3 more like lets say cars they help you get around better but have started global warming.and you need gas.