When we scrape off our dishes after a large meal, too full to finish the remaining scraps on our plate, we rarely pause and think about the significance of our action. It seems routine to us: if we have leftover food scraps that are unfit for eating, shouldn’t they be thrown in the garbage? Our routine practices, unfortunately, make it difficult for us to conceptualize the magnitude of global food waste. The problem is bigger than we think.According to a recent report by UNEP and the World Resources Institute (WRI), about one-third of all food produced worldwide, worth around US$1 trillion, gets lost or wasted in food production and consumption systems. When this figure is converted to calories, this means that about 1 in 4 calories intended for consumption is never actually eaten. In a world full of hunger, volatile food prices , and social unrest, these statistics are more than just shocking: they are environmentally, morally and economically outrageous.