This paper provides new predictions of the global climate change mitigation potential of soil organic carbon sequestration on agricultural land.  It asks whether soil carbon sequestration really does have  a major role to play in mitigating agricultural GHGs and concludes that, given the many technical constraints, and the time limited nature of sequestration, its contribution is in fact likely to be minor.  However, as the authors  point out, there are other non-CO2 benefits that arise from building soil carbon, that are not considered in this study.

This paper provides a review of the current literature analysing environmental impacts of dietary recommendations. The review focuses on three aspects of dietary advice in particular: reducing the consumption of fat, reducing the consumption of meat-based protein and animal-based foods, and finally increasing the consumption of fruit and vegetables. It then reviews the environmental impact assessments and Life Cycle Analysis (LCA) that have been undertaken in foods that have relevance to these three dietary recommendations.

This study is one of the very few that examines the GHG impacts of a selection of real life ‘self selected’ diets as opposed to those that are modelled or hypothetical.  It looks specifically at the dietary patterns (based on a standard 2,000 kcal diet) of UK vegetarians, semi-vegetarians and non-vegetarians.  Approximately 55,500 subjects were chosen for the study, all part of the EPIC-Oxford cohort study.

A top China  government advisor said at a recent Beijing conference that China, the world's biggest greenhouse gas emitter will limit its total emissions for the first time by the end of this decade. The Chair of China's Advisory Committee on Climate Change said that an absolute cap on emissions will be introduced sometime within the next five years. Although the advisor later stated that these were only his own opinions, commentators expressed a cautious optimism about the statement.

The CCAFS (CGIAR research program on Climate Change, Agriculture and Food Security) newsletter Agriculture-Climate Letters - A Science-Policy Bulletin, is a valuable resource for those interested in receiving further updates on the links between food and climate –with a particular focus on developing countries. In their latest issue Sonja Vermeulen, CCAFS head of research, highlights the special issue of Environmental Research Letters on mitigation in the agriculture and land use sectors in developing countries.  See more information about the CCAFS newsletter and how to sign up here and read the full Environmental Letter series here.

This book uses a decade of primary research to examine how weather and climate, as measured by variations in the growing season using satellite remote sensing, has affected agricultural production, food prices and access to food in food-insecure regions of the world.

This study published by the European Commission's Joint Research Centre in the journal Environmental Research Letters analyses the water footprint of agricultural production and consumption in Europe. It looks at the net virtual water import of 365 European river basins for the period between 1996-2005 based on two diet scenarios – a healthy diet based upon food-based dietary guidelines and a vegetarian diet.

In this feature on Food Choices & Health, the United States Department of Agriculture and Economic Research Service (ERS) discusses food loss and food waste and points out the distinction in meaning between the two. They describe food loss as includes moisture loss and cooking shrinkage; loss from mould, pests, or inadequate climate control; and food waste.

The International Trade Center’s (ITC) Trade and Environment Unit has recently released a training manual aimed at addressing climate change in the tea sector. With climate change already having an impact on both the quality and quantity of tea the manual sets out to help tea farmers and factories lower their emissions and reduce energy costs. One of the reasons for the focus on factories is that exporters are increasingly subject to requirements set by buyers and retailers to measure and reduce carbon emissions.