[Formula: see text] [ Martin A. J. Parry ] The balance between the supply and demand of the major food crops is fragile, fueling concerns for long‐term global food security. The rising population, increasing wealth and a proliferation of non‐food uses (e.g. bioenergy) has led to growing demands on agriculture, while increased production is limited by greater urbanization, and the degradation of land. Furthermore, global climate change with increasing temperatures and lower, more erratic rainfall is projected to decrease agricultural yields.

The United Nations Convention to Combat Desertification (UNCCD) remains the only ‘Rio Convention’ that is not well served by the scientific community and lacks the equivalent of an IPCC (Intergovernmental Panel on Climate Change) or the proposed IPBES (Intergovernmental Science–Policy Platform on Biodiversity and Ecosystem Services).

The global poor often prioritise immediate hazards of food insecurity over temporally more distant risks like global warming. Yet the influence of socio-economic factors, temporal and spatial distance on risk perception remains under-researched. Data on risk perception and response were collected from two sets of Indian villages. Participatory approaches were used to investigate variations by socio-economic status, food security, age and gender. Villagers’ risk priorities reflected clear spatial and temporal patterns depending on land ownership, community group and education levels.

People in southern Africa are facing escalating levels of risk, uncertainty and consequently vulnerability as a result of multiple interacting stressors, including HIV/AIDS, poverty, food insecurity, weak governance, climate change and land degradation, to name but a few. Vulnerability or livelihood insecurity emerges when poor people as individuals or social units have to face harmful threats or shocks with inadequate capacity to respond effectively. In such situations, people often have no choice but to turn to their immediate environment for support.

A multi-scale study has been undertaken to explore the relationships between climate, water resources, land use and diffuse pollution in order to assess the significance of projected future changes in climate and the uncertainty inherent in these projections. Two climate simulations from the GCM–RCM Perturbed Physics Ensemble developed by the UK Met Office Hadley Centre, broadly representing the extremes of future climate simulations, were downscaled and applied to a grid-based dynamic national water balance and nitrate model for Scotland.

In Cameroon and elsewhere in the Congo Basin, the majority of rural households and a large proportion of urban households depend on plant and animal products from the forests to meet their nutritional, energy, cultural and medicinal needs. This paper explores the likely impacts of climate-induced changes on the provisioning of forest ecosystem goods and services and its effect on the economic and social well-being of the society, including the national economy and the livelihoods of forest-dependent people.

In the year 2000 the government of Zimbabwe launched the Fast Track Land Reform Programme (FTLRP) as part of its on-going land reform and resettlement programme. The main premise of the programme is to address the racially skewed land distribution pattern inherited at independence in 1980. While the programme has been accompanied by an overall reduction in agricultural production which has created widespread food insecurity throughout the country, empirical research on the impact of the programme on the agricultural productivity of its beneficiaries has been limited.

Modeling human–environment systems presents many challenges, including incorporating structure and agency and addressing uncertainty in system components and relationships. Exploring perceptions not only gives us insight into decision-making (agency) but also reveals structural constraints influencing those decisions (including perceived constraints). This study focuses on the human–nature dynamics of Fanjingshan National Nature Reserve (FNNR) in China, a biodiversity hotspot and the only habitat for the Guizhou golden monkey (Rhinopithecus brelichi).

Agricultural land is a complex system that combines natural ecology and social economy, and the health of agricultural land directly influences regional economic development and national food security. Emergy analysis is an effective method for value analysis of ecosystems, assessment of the health of ecosystems, which is based on principles of systems ecology and energy. And fuzzy logic is a generalization tools to operate with vaguely defined parameters or concepts, which has been extensively applied in the quality evaluation of soil and land.

Agriculture and agribusiness play an important role in the Zambian economy, contributing around 20 percent of gross domestic product (GDP) in recent years and about 12 percent of national export earnings. Agriculture employs nearly 70 percent of the labor force and remains the main source of income and employment for most of the people living in rural areas. The objective of the Zambia agribusiness indicators (ABI) country report is to examine factors that have affected agricultural productivity, market access, and the policy environment for agriculture in Zambia.

Pacific island countries continue to be among the most vulnerable in the world: they combine high exposure to frequent and damaging natural hazards with low capacity to manage the resulting risks. Their vulnerability is exacerbated by poorly planned socioeconomic development, which has increased exposure and disaster losses, and by climate change, which has increased the magnitude of cyclones, droughts, and flooding. Currently, inefficient management of risks negates development gains and incurs large costs for national and local governments.