Water security needs priority in adaptation to global change. Most vulnerable will be the semi-arid tropics and subtropics, home of the majority of poor and undernourished populations. Policies have to distinguish between dry spells, interannual droughts and long-term climate aridification. Four...

There are major challenges associated with the provision of urban water services which meet acceptable standards of service for present and future generations. Unless there is significant investment in the underground networks there will be an increasing loss of access to acceptable service....

This paper examines the relations between tariffs and sustainability, efficiency and equity, using a unique data-set for 308 cities in 102 countries. Higher water tariffs are correlated with lower per capita consumption, smaller local populations, lower water availability, higher demand and a...

Construction of the Koto Panjang Dam was initiated in response to the rapidly increasing demand for electricity in the central region of Sumatra, Indonesia. The process of resettling the villages affected by this construction lasted from 1991 to 2000. The economic factors related to this...

This paper focuses on the use of three economic approaches to water management in Australia that can increase the efficiency of water use and water security, thus providing a fillip to sustainability and economic growth: the establishment of water markets and water pricing; government spending;...

A study of the effects of the Saguling Dam project has been conducted. This paper attempts to examine the long-term effects of the dam construction on the livelihoods of the displaced people, paying special attention to any effects caused by inequality of access to resettlement schemes. The...

The impact of climate change scenarios in the hydrology of the Verde River basin (Arizona) is analyzed using an ensemble of downscaled climate model results, SPI analysis, and two hydrologic models of different complexity. To assess model uncertainty, 47 ensemble members combining simulations...

Urban water tariffs vary substantially across cities and regions, for reasons that reflect water scarcity conditions, local or regional objectives, and political considerations. Comparisons of average water prices across regions are not generally meaningful, as the prices are not weighted or...

This paper examines the actions toward the reduction of greenhouse gas emissions to the atmosphere that Greece has implemented to comply with international conventions and the Kyoto Protocol. It also concerns the analysis and processing of climate variables and the assessment of the impact of...