This paper looks at four different conceptual frameworks that tend to be used by diverse stakeholders when analysing the problem of food security and suggesting solutions: agroecology, agricultural innovation systems, social-ecological systems and political ecology. In this paper the authors look at how each perspective or framework thinks about the food security problem, the theoretical positions underpinning each framework, its approach to improving the food security situation and ultimately its vision of what ‘good’ looks like.

This new paper in Global Environmental Change, builds on a 1997 study published in Nature on the global value of ecosystem services, and estimates the changes since then.

This paper reviews one aspect of the food sustainability challenge: the goal of producing more food – a goal that is unthinkingly accepted by some and vigorously contested by  others. The paper argues that increased food production is necessary but also emphasises that this alone, as a response to the challenge, is not sufficient.

This comparative five year study on grasslands suggests that allowing grazing animals to crop the excess growth of of grasses that, due to fertization, grow too vigorously, can counteract the threats these grasses present to the other plants that contribute to the biodiversity of native prairies.