Anything changes the world, some inconsequential, some not, some for better, some for worse, some neutral. If you mean make a positive impact on the world thoug

Anything changes the world, some inconsequential, some not, some for better, some for worse, some neutral. If you mean make a positive impact on the world though: Probably one of the most direct ways to help is to work for a company whose impact you believe will help change the world in a positive way. E.g. online learning, green tech, or whatever you personally are passionate about. Another example: in the last 5-10 years there's been a lot of work done in helping consumers understand their power and water usage. This lets us make smarter choices and reduce our energy and water usage.