Livestock produces a lot of waste. One solution is to turn such agricultural waste into biogas to generate energy .  It requires using so-called anaerobic digestion, which consists in breaking down biodegradable material in the absence of oxygen.

Increasingly, many of the plastic products we use every day are no longer based on petroleum raw material . Instead, they are made from biomass such as starch, sugar, corn and other sources that also happen to be food products.