Guardian: A new report says that the world will need to more than double food production over the next 40 years to feed an expanding global population. But as the world's food needs are rapidly increasing, the planet's capacity to produce food confronts increasing constraints from overlapping crises that, if left unchecked, could lead to billions facing hunger.
The UN projects that global population will grow from today's 7 billion to 9.3 billion by mid-century. According to the report released last week...