The Country Environmental Analysis (CEA) for Timor-Leste identifies environmental priorities through a systematic review of environmental issues in natural resources management and environmental health in the context of the country's economic development and environmental institutions. Lack of data has been the main limitation in presenting a more rigorous analysis. Nevertheless, the report builds on the best available secondary data, presents new data on the country's wealth composition, and derives new results on the costs of water and air pollution.

Developing countries, as a group, are the ones most threatened by the hydrological impacts of global climate change. Water is a critical resource in development, and it is affected by climate change in multiple, complex ways ? through changes in temperature and rising sea levels, changes in precipitation patterns, and melting snowfields and glaciers.

The Himalayan region is not only tectonically active and ecologically fragile but is it also one of the most economically underdeveloped and most densely populated mountain ecosystems on the planet. These natural as well as human characteristics render the Himalayan region highly vulnerable to the impacts of development, degradation and climate change and in particular the impact of melting of glaciers and changes in the patterns of precipitation.

The economy of the Amazon region relies heavily on water for transport and livelihoods. Important also for the regional water cycle, the Amazon ecosystems are threatened by climate change, although there is little knowledge about the likelihood of adverse events and potentially related vulnerabilities. Therefore research and building up capacities for collective action are cornerstones of adaptation to climate change. Since 2008, strategic policy approaches have emerged. The region has only started to prepare itself for the things to come.

The River Nile provides an invaluable source of livelihoods to over 160 million of people who dwell in its valley. The river valley is renowned for being a cradle of civilisation. As the populations grew and civilisation evolved, the demand for more water resources took a toll in the region. The more recent visible climate change effects have further compounded water management in the basin. Water and food security in the region is under threat, hence the need for robust transboundary water management. An effective institutional arrangement is a key factor in facilitating this process.

Water and soils are increasingly becoming a limiting resource for meeting the food requirements
of a growing world population. Integrated concepts for managing natural resources in a sustainable
and environmentally sound manner show encouraging impacts, if applied on a large scale and
over a long period like in Tigray, the northernmost regional state of Ethiopia.

Poverty in rural households have deepened in the past two years through world events: unprecedented rises in food and fuel prices were followed by global economic meltdown, all amidst growing climate uncertainty. Balancing water availability within and across growing seasons, water harvesting helps to buffer households against drought. Research on water harvesting in South Africa has focused on rural household livelihoods. Innovative results on appropriate water harvesting technologies and food security facilitation techniques are now being implemented in villages across South Africa.

Water is scarce in India's semiarid zones of Rajasthan. Climate change is putting additional pressure on the rare resources. Irregular or no rainfall forces many small farmers to abandon their fields, at least temporarily, and seek work in the towns. Participative water management projects as practiced in Bhipur village, growing crops with low water requirements and more sustainable farming practices are adaptation strategies that allow farmers to continue their activities despite climate risks.

Many adaptation measures urgently needed in agriculture today as a consequence of climate change concern water in agriculture and were already devised and implemented in the 1980s as a part of rural development activities. However, most of the experience and knowledge have sunk without trace. Systematic knowledge management at that time would have made it possible to benefit from this experience today in the planning and implementation of water-related adaptation measures, providing effective support for these measures and hastening their implementation.

Décadas de escasa inversión pública en agricultura han debilitado la capacidad de los agricultores para hacer frente a la volatilidad de los precios, a los cambios climáticos y económicos, o para poder salir por sí mismos de la pobreza. Sin embargo, los donantes y los gobiernos deben considerar la inversión en agricultura como parte de la solución a largo plazo frente a las crisis alimentaria, financiera y climática.