Although several institutional and management approaches that address the degradation of the rangelands have been tested in the dry areas of Central and West Asia and North Africa (CWANA), impact has been limited. Nonetheless, the development of National Action Plans to combat desertification highlights the interest of governments to tackle this issue. Payment for Environmental Services (PES) may be a viable policy option, though, to date, most PES programs have focused on the management of different resources (forests, watersheds).

Attention to land degradation and environmental pollution has increased significantly in the past 25 years, largely due to greater levels of international cooperation and recognition that local changes in land resources have global impacts. As the world’s focus on climate change increases, so, too, does the attention being paid to drought and its rise in frequency and severity.

Climate resilient cities a primer on reducing vulnerabilities to disasters is prepared as a guide for local governments in the East Asia Region to better understand the concepts and consequences of climate change; how climate change consequences contribute to urban vulnerabilities; and what is being done by city governments in East Asia and around the world to actively engage in learning, capacity building, and capital investment programs for building sustainable, resilient communities.

Documento final de la Conferencia de las Naciones Unidas Rio +20 llevada a cabo en Rio de Janeiro - Brasil del 20 al 22 de junio de 2012.

El documento explica y analiza los impactos de los cambios climáticos en Sudamérica reflejados en el retroceso de los glaciares, la agricultura. los ecosistemas, la salud y las iniciativas de mitigación existentes en la región.

La agricultura resiliente al clima está en vigencia hoy más que antes debido a los constantes cambios que experimenta nuestro planeta. Al comprender los orígenes de las investigaciones sobre la agricultura y el cambio climático, el autor busca unir la tecnología y los saberes ancestrales de los pueblos para la producción alimenticia más eficiente. Como parte de una serie de artículos cortos de opinión, este texto llega a plantear una postura sobre la agricultura resiliente al clima.

El autor del presente artículo establece como punto de partida para su análisis que es mejor hablar de Cambio Ambiental Global, es decir, aquellas modificaciones que se vienen produciendo en  los sistemas Tierra, Atmósfera, Océanos y Biosfera, que resulta ser más amplio y complejo que el cambio climático.
Cambio climático, comunidades y desarrollo
Fernando de la Cuadra*

Elizabeth Vargas Solá (*)

With more than 900 million people world-wide affected by chronic hunger, international action on soil conservation is urgently required. The United Nations Convention to Combat Desertification (UNCCD) enjoys substantial support, and the author of this article demonstrates that it could play a key role as a global policy and monitoring framework in addressing land and soil degradation.

Desertification is nowhere more serious than in the Middle East and North Africa (MENA), stretching from Pakistan in the east to Morocco in the west, and from Ethiopia and Sudan in the south to Turkey in the north. Yet, many MENA countries have successfully rehabilitated large areas. Concerted efforts can indeed stop and even reverse desertification, though their long-term success will depend on how well they manage their limited water resources.

Hardest hit by desertification is Sub-Saharan Africa, where poverty is more widespread, preparedness for catastrophe is lower, and means for adequately coping with the phenomenon are very weak; two thirds of the arable land will be lost by 2025.The subcontinent needs improved integrated initiatives on local, national und multinational level for a sustainable natural resources management. Environmental Information systems can increase awareness and throw light on decision making processes on the complexity of desertification badly needed by most African countries.