<P> Production of 1 tonne (0.98 long tons; 1.1 short tons) of plastic cup emits 135 pounds (61 kg) of green house gases . </P> <P> The choice between paper cups and plastic cups has to do with the life of the item after use . A paper cup may biodegrade faster than a Styrofoam cup or a plastic cup . In general cardboard or paper takes one to three months for biodegradation, as the majority of the content, up to 95%, is made with wood chips . A plastic cup can take up to 90 years to biodegrade, depending on the type of plastic . </P> <P> Plastic cups are made with oil, which is not a renewable source . On the other hand, paper cups can be sourced from forests which fall under sustainable management . </P> <P> Plastic cups, especially those made with polystyrene, are also a possible health hazard as chemicals may leach into the beverage . This is more likely to happen with warm drinks (hot chocolate, tea and coffee) than with cold drinks . </P>

What can i do to change the material like plastic cup