Here's a bit of the Introduction:
The global food system is broken.
One-third or more of the food we produce each year is never eaten. More than one billion metric tons of food is lost or wasted, never making it from the farm to our fork. In developing countries it decays in fields before harvest or spoils while being transported. Some is lost in retail markets before consumers can buy it. In developed countries people buy too much and then throw it away. They reject perfectly nutritious food that is cosmetically imperfect. Too often restaurants serve oversized meals, large portions of which are discarded. Although reasons vary, we waste food everywhere, often in ways that seem foolish given our fundamental need for this precious resource.
It's been an eye-opening experience for me tracking food waste's impact on hunger, malnutrition, land, water, food security, national security, finance--and climate change. If you want to follow John on Twitter he's @.I'm on Twitter too but really very boring: