The balancing act of producing more food sustainably

A policy known as sustainable intensification could help meet the challenges of increasing demands for food from a growing global population, argues a team of scientists in an article in the journal Science . The goal of sustainable intensification is to increase food production from existing farmland, says the article in the journal's Policy Forum by lead authors Dr Tara Garnett and Professor Charles Godfray from the University of Oxford. They say that this would minimise the pressure on the environment in a world in which land, water and energy are in short supply, highlighting that the environment is often overexploited and used unsustainably. The authors, university researchers and policy-makers from NGOs and the UN, outline a new, more sophisticated account of how 'sustainable intensification' should work. They recognise that this policy has attracted criticism in some quarters as being either too narrowly focused on food production or as representing a contradiction in terms. The article stresses that while farmers in many regions of the world need to produce more food, it is equally urgent that policy-makers act on diets, waste and how the food system is governed. The authors emphasise that there is a need to produce more food on existing rather than new farmland because converting uncultivated land would lead to major emissions of greenhouse gases and cause significant losses of biodiversity.