Meklēt

Meklēšanas rezultāti

Tiek rādīts Nr. 8 no 8 rezultāti

While it is rich in fossil fuels and minerals, Central Asia is poor in water. However, water plays a key role in the economies of the five Central Asian countries. In mountainous Kyrgyzstan and Tajikistan, hydroelectricity is already a vital energy resource; new dams could also make it a major export revenue earner. Downstream, river water irrigates the cotton fields of Uzbekistan and Turkmenistan. Heavy water use, particularly in agriculture, is putting water supplies under pressure. Central Asian ...

In more than 260 trans­boundary watercourses around the world, the closely linked issues of energy, water and agriculture cause difficulties. Tensions between energy-starved Tajikistan and cotton-producing Uzbekistan over the planned Rogun hydro-electric dam illustrate the continuing 'water versus energy' debate. At the same time, the scarcity of water resources in Central Asia is often caused by mismanagement.

Water is a key natural resource targeted within resource efficiency policy of the European Union, as well as globally. This study has focussed on research, technologies and options for sustainable water use and water efficiency; agricultural land management with soil and water benefits; and measures within the Common Agricultural Policy (CAP) to address sustainable management of water and soil resources. Six key areas for improvement have been identified: (1) The legislative framework currently ...

Soil degradation is a natural process accelerated by human activities and involves both the physical loss (erosion) and the reduction in quality of topsoil associated with nutrient decline and contamination. It has been caused by a number of factors many of which are tied to human development as deforestation, overexploitation, overgrazing, and industrialization. They have both localised and widespread impacts and affect soil quality for agriculture. This study aims to present the current situation ...

This note analyzes the impacts of biofuels on the environment and on food security in Brazil. The Brazilian biofuels industry is a world leader and currently 40% of vehicle come from ethanol from cane. Since 1990 over 42 M Ha of Brazilian forest have been lost but it cannot be on account of biofuel. In other hand, there is little evidence that biofuels cause hunger: prices of most food in Brazil have been falling compared to the general price since 1994. In addition, the biofuel industry provides ...

The world water scarcity problem - recently discussed at the 3rd World Water Forum (Kyoto, 16 to 23 March 2003) - is the cause of illness among more than 1 billion people and of the death of millions every year, through both the lacks of drinkable water and adequate sanitation. This report tries to address this world water scarcity problem, the most important human problem of the XXI century and will describe the position of international organisations and institutions, will describe the situation ...