Annually around a third of all food waste is wasted , according to WHO . Entrepreneurs are starting businesses to turn food waste into something wanted . Composting has become a common method of recycling food as fertilizer or soil amendment . Used coffee grounds provide basis for Back to the Future coffee .
Annually around a third of all food waste is wasted , according to WHO . Entrepreneurs are starting businesses to turn food waste into something wanted . Used coffee grounds provide basis for Back to the Future coffee .