gestão de recursos naturais
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Securing access to drylands resources for multiple users in Africa
Community natural resource management: the case of woodlots in northern Ethiopia
This paper examines the nature of community management of woodlots and investigates the determinants of collective action and its effectiveness in managing woodlots...in Tigray, northern Ethiopia. We find that collective management of woodlots generally functions well in Tigray.... The findings suggest collective action may be more beneficial and more effective when managed at a more local level, when the role of external organizations is more demand-driven, and when promoted in intermediate population density communities more remote from markets.
Resource degradation, low agricultural productivity, and poverty in sub-Saharan Africa: pathways out of the spiral
New challenges for resource and environment data for policy research
Climate change, food security, and socioeconomic livelihood in Pacific Islands
Climate change projections internationally accepted as being reliable indicate that most countries in the Pacific region will suffer large-scale negative impacts from climate change. These impacts are likely to include elevated air and sea-surface temperatures, increasingly unpredictable rainfall patterns, rising sea levels, and intensification of extreme weather events such as tropical cyclones and El Niño-related droughts.
AIDS mortality and the role of natural resources in household food security in a rural district of South Africa
Although wild natural resources are a standard dietary component in southern Africa, little information exists on these resources' specific role in the maintenance of household food security among HIV-impacted households. In this context, the influence of cash savings or income generated through use or sale of natural resources (e.g., using fuelwood instead of electricity to be able to afford to buy food) is also not known.
Respondiendo a la crisis alimentaria mundial: Tres perspectivas
El dramático aumento y la volatilidad de los precios de los alimentos durante el último año han sacudido al sistema alimentario mundial. Por lo general, tanto los gobiernos como la comunidad dedicada al desarrollo internacional han respondido ante diversos aspectos de la crisis alimentaria, pero todavía permanecen las preguntas sobre si se han tomado o no las acciones más adecuadas, cuál es la mejor forma de responder y qué nos aguarda en el futuro.
Responding to the Global Food Crisis - Three perspectives
"The dramatic rise and volatility of food prices over the last year have shaken the global food system. Governments and the international development community generally have responded to various aspects of the food crisis, but questions remain about whether the right actions are being pursued, how best to respond, and what the future holds.
IFPRI Annual Report 2007-2008
The report includes three essays about Responding to the World Food Crisis: Getting on the Right Track by Joachim von Braun, High Global Food Prices: The Challenges and Opportunities by Josette Sheeran, and Policy Implications of High Food Prices for Africa by Namanga Ngongi.
Policy implications of high food prices for Africa
"African agriculture is at a crossroads. The current high food prices and the instability they have provoked in several countries have added impetus for African countries to review their agricultural policies and programs. New agricultural policies will have to be more focused on staple food crops and on their main producers-smallholders, most of whom are women. The new policies must remove constraints that impede access by smallholder farmers to the knowledge, technology, and financial services they need to increase farm productivity in a profitable and environmentally sustainable manner.
Los Biocombustibles y la Seguridad Alimentaria
La demanda de biocombustibles se está incrementando debido a la necesidad cada vez mayor de energéticos, el alza en el costo del petróleo, la búsqueda de fuentes de energía renovables y no contaminantes y el deseo de aumentar los ingresos agrícolas en los países en desarrollo. Asimismo, ha aumentado en forma drástica la necesidad de contar con cultivos, como el maíz y la caña de azúcar, que pueden utilizarse como materia prima para producir biocombustibles. Esta demanda ha tenido a nivel mundial un impacto significativo y cada vez mayor en los sistemas alimentarios.