How Food Waste is Helping Power Greenhouses | Earth Lab
A British tomato grower buys wasted fruits and vegetables to produce energy for his greenhouse, and CO2 to increase tomato yield. According to the UN, an estimated one-third of all food is lost or wasted worldwide as it moves from where it is produced to where it is eaten, even as more than 800 million people are undernourished.
(BBC Earth Lab, ~4 min. video, 2018)