Water scarcity is rapidly increasing in many regions. In a novel, multi-model assessment, we examine how human interventions (HI: land use and land cover change, man-made reservoirs and human water use) affected monthly river water availability and water scarcity over the period 1971–2010. Here we show that HI drastically change the critical dimensions of water scarcity, aggravating water scarcity for 8.8% (7.4–16.5%) of the global population but alleviating it for another 8.3% (6.4–15.8%).

The future of the government’s proposal to make Jog Falls in Shivamogga district perennial will now be decided by the Ministry of Environment and Forests (MoEF) and the locals of the region.

Integrated Hydrological Data Book is a compendium of important information of major basins consolidated at the national level.

Ground Water Year Book is prepared annually by CGWB depicting changes in ground water regime of the country through different seasons. It is an effort to obtain information on ground water levels through representative monitoring wells. The important attributes of ground water regime monitoring are ground water level.

Many major river deltas in the world are subsiding and consequently become increasingly vulnerable to flooding and storm surges, salinization and permanent inundation. For the Mekong Delta, annual subsidence rates up to several centimetres have been reported. Excessive groundwater extraction is suggested as the main driver. As groundwater levels drop, subsidence is induced through aquifer compaction.

Drought management frameworks are dependent on methods for monitoring and prediction, but quantifying the hazard alone is arguably not sufficient; the negative consequences that may arise from a lack of precipitation must also be predicted if droughts are to be better managed. However, the link between drought intensity, expressed by some hydro-meteorological indicator, and the occurrence of drought impacts has only recently begun to be addressed. One challenge is the paucity of information on ecological and socio-economic consequences of drought.

Abuja — The executive director, West Africa Science Centre on Climate Change and Adopted Land Use, WASCAL, Prof.

Regulating fluvial systems by dams, barrages and construction of inter-basin link canals, has severe impacts on fish populations across the world’s rivers. In India, all major fluvial systems are interrupted by a series of barriers. This includes small weirs to large dams and salt-water barriers preventing saline incursion to the estuarine lakes.

Original Source

Egypt’s Nile delta, only ~1 m above mean sea level at the Mediterranean coast, is subject to uneven rates of submergence. This is a response to several factors leading to increasing land lowering (subsidence) of the northern delta and adjacent seafloor, plus an accelerating rise in eustatic (world) sea level in the Mediterranean. An average eustatic sea-level rise of ~3 mm/yr represents only ~26% to 45% of total relative sea-level rise measured along this margin.

Order of the National Green Tribunal in the matter of M.C. Mehta Vs. Union of India & Ors. dated 17/04/2017 regarding prevention and control of pollution and rejuvenation of river Ganga particularly in Segment `B’ of Phase-I.

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