With the electric energy developing rapidly in every field and the calling for protecting the environment raising increasingly,it seems that we've connect the electric energy with clean and sustainable energy.But is it true?It seems that we didn't pay attention to where the electricity we use actually comes from.In the age where electricity is mainly generated by using fossil fuel,is the electricity we use a kind of clean and sustainable energy? Is there any other better way we can use to generate electricity ? From my aspect,they are the question we're supposed to consider all.

In this poster I show the source of the electricity with the volume of cocktail in wineglasses.