Environment Japan rethinking food waste: three ingenious examples

Although it discards over 40 kg of food per person yearly, Japan doesn't rank among the top offenders. However, what's tossed out represents a severe problem for an island nation with limited landfill space and a goal of greater sustainability. The WP presents Japanese companies, which focus on reinvention by taking vegetable peels, cooking oil, eggshells and other used foodstuffs and making entirely different products. Cement, for example. Even furniture.

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• the train that runs on tonkatsu ramen lard and other cooking waste
• concrete made of dried food scraps
• 3D-printed chairs entirely made of eggshells.