Sectoral water allocation policies in selected ESCWA member countries. An evaluation of the economic, social and drought-related impact [ - 589 KB]
United Nations Economic and Social Commission for Western Asia (UNESCWA). 2003
It is intended that this study constitute both a reference document for policy- and decision-making processes relating to the management of water supplies in the ESCWA region, and an evaluation tool for decisions that have already been made regarding the allocation of water resources to various sectors. As such, its beneficiaries will be primarily policy and decision makers involved in the daily management of the ESCWA region's diminishing water resources. It is hoped that the study will also be of use to other professionals in the field, and will inform the general public on the issues surrounding sectoral water allocation and how optimal allocation can ensure sustainable, equitable and efficient use of the region's water resources.
The ratio of the amounts of carbon-12 to carbon-14 in a human is the same as in every other living thing. After death, the carbon-14 decays and is not replaced. The carbon-14 decays, with its half-life of 5,730 years, while the amount of carbon-12 remains constant in the sample. By looking at the ratio of carbon-12 to carbon-14 in the sample and comparing it to the ratio in a living organism, it is possible to determine the age of a formerly living thing. Radiocarbon dates do not tell archaeologists exactly how old an artifact is, but they can date the sample within a few hundred years of the age.