Nature July 29 th edition has done a special on feeding the world

Special : Can science feed the world?
Forty years from now there will be 2 billion more of us to feed. Today, a billion go hungry. In the hunt for sustainable solutions, science plays a central role. This week’s Nature News special explores how agricultural research is rising to the challenge of balancing productivity with shrinking resources. How to feed a hungry world looks at ways of boosting yields while keeping land use in check, while The global farm investigates Brazil as walking the line between biodiversity hotspot and agricultural giant. In Monitoring the world’s agriculture, Jeffrey Sachs and 24 food-system experts call for the collection of data on the impacts of farming worldwide. In the free Nature Podcast we showcase the role of GM — and there’s much more on the future of food.