Something to consider when it comes to global hunger is food waste. One of the reasons I was able to become part of the UNFAO Private Sector Mechanism is because of my involvement in SAVE FOOD: Global Initiative on Food Loss and Waste Reduction: http://www.fao.org/save-food/en/
Food Waste happens all along the agricultural value chain, but my focal point is to help reduce the loss aspect from the very beginning (production), which is why we at CFS are focused on decentralized distributed growing systems. In other words, enabling high yield local/regional farming with many CFS facilities, giving opportunities so that regions can be more locally productive and self sufficient, reducing the need for massive shipping and logistic requirements. This is pretty self evident in our animated video. If neighborhoods and villages had a series of CFS facilities providing a reasonable amount of local use produce (local grow/local eat), that not only reduces transportation pollution, but reduces waste. And with composting systems built into the greenhouses, any leftovers don’t go to waste, but are turned into something that can be used.
But to give some numbers to the issue, check out the following infographic on food waste: http://insinkerator.co.uk/uk/page/global-food-waste-statshttp://insinkerator.co.uk/uk/page/global-food-waste-stats
So when it comes to sustainable agriculture, making sure that we actually eat what we grow is most certainly the most important place to start.