Does the internet make us greener?

When you turn your computer on .....you are using energy.This must be bad for the environment?
Yet the internet has actually helped in its own way to reduce the carbon footprint.We can shop on line,we can write e-mails,use social networking groups,we make less waste.
There is also a vital point of having the net.We can send clear messages to the world about what we can do for our environment.We can help change the world.
Hopefully there will come a time when we can have greener servers and greener computers.