Síntesis de la opinión aceptada por la mayoría de los científicos que estudiaron el cambio del clima de la Tierra en el último siglo y medio.

El aumento de los gases de efecto invernadero (GEI) en la atmósfera es el más comentado —y uno de los más estudiados— de los impactos humanos sobre el planeta por ser motor del cambio climático y de su consecuencia más general y conocida: el calentamiento global. Hay consenso acerca de que estos cambios serán en su mayoría perjudiciales, y por lo tanto también hay muchos análisis sobre cómo evitarlos, o por lo menos atenuarlos.

Los impactos del cambio clima?tico se hicieron ma?s evidentes en las u?ltimas de?cadas especialmente por la intensa quema de combustibles fo?siles que causo? la frecuencia e intensidad de los feno?menos naturales. Varios pai?ses se ven afectados por estos impactos, siendo algunos ma?s vulnerables que otros tal es el caso de la Repu?blica de Chile. Uno de sus efectos ma?s importantes es la disminucio?n de glaciares que no so?lo generara?

Fil: Bert, Federico Esteban. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario; Argentina

El objetivo del presente trabajo es abonar a la reflexión de la articulación entre la gestión de riesgo dedesastres y la equidad de género. Se presenta un estudio de caso en cuatro localidades del estado de Yucatán,México, sobre percepciones respecto al cambio climático y capacidades institucionales sobre gestión deriesgos.

The Paraná delta, growing at a rate of c. 2 km2 yr-1 since 6,000 yrs, is one of the most complete record of late Holocene in southern South America. The evolution of this 17,400 km2 delta enclosed in Plata estuary, can be tracked by a series of 343 successive coastal-ridge showing a c.11 years period, in coincidence with sunspot cycle, also found in some North Hemisphere coastal-ridge successions.

This paper analyses the climate change projected for the near and distant future in South America using MRI/JMA (Japanese Meteorological Agency) global model simulations with resolutions of 20 and 60 km. Changes in mean climate, as well as in the annual cycles and interannual variability of temperature and precipitation are discussed. An analysis is also made of the uncertainties of the 60 km resolution model experiments. For the near and distant future, both, the 20 km and 60 km resolution MRI/JMA models project that temperature changes will be positive in all seasons.

This report presents a comprehensive regional assessment of the Mediterranean, Middle East, and Sahel in terms of climate change impacts, vulnerabilities, conflict/cooperation and human security at various scales and in a variety of contexts. The Climate Change, Hydro Conflicts and Human Security (CLICO) project builds on interdisciplinary and cross-comparative research covering a variety of geographical scales and historical contexts to unravel social, political, environmental/ ecological and economic conditions in relation to the environment.

The second policy brief from the EU funded Climate Change, Hydro?conflicts and Human Security (CLICO) project presents insights on emerging policies at the interface of climate change, water and human security at national and international level. Ten case studies were conducted in variouscountries in the he Mediterranean, the Middle East and the Saheland at UN and EU level. These investigate whether the link between climate change and human security/conflict is being addressed through targeted policies. The studies show that so far there are few specific policies addressing this interface.

The focus of the project is on increasing the resistance of the physical environment to landslide activity; and building capacity of the community to decrease their vulnerability to landslides when they do occur. Project activities will include: 1. Identifying critical points of erosion and deforestation in Macacos Hill; 2. Promoting Reforestation of Macacos Hill, with the help of residents; 3.

Water is central to the Zimbabwean economy, people's livelihoods and their social well-being; its availability and reliability is a function of highly variable climatic conditions. Irrigated agriculture is the major water using sector while rain fed agriculture depends on reliable rainfall.

Urban wastewater management has become a major challenge in India as infrastructural development and regulations have not kept pace with population growth and urbanisation. This study argues that against the backdrop of water scarcity and climate change, it is important to examine issues related to wastewater reuse more holistically and to investigate the challenges and opportunities for its safe and efficient reuse.