river delta Articles
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The rising tide of environmental refugees
Our early twenty-first century civilization is being squeezed between advancing deserts and rising seas. Measured by the biologically productive land area that can support human habitation, the earth is shrinking. Mounting population densities, once generated solely by population growth, are now also fueled by the relentless advance of deserts and may soon be affected by the projected rise in sea ...
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The copenhagen conference on food security
For the 193 national delegations gathering in Copenhagen for the U.N. Climate Change Conference in December, the reasons for concern about climate change vary widely. For delegations from low-lying island countries, the principal concern is rising sea level. For countries in southern Europe, climate change means less rainfall and more drought. For countries of East Asia and the Caribbean, more ...
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Flooding of lowland peatlands in Southeast Asia
Vast lowland areas of Southeast Asia will be frequently and irreversibly flooded before the end of the century unless action is taken to stop the destruction of peatlands. A radical change in land-use is needed. In particular the palm oil and pulp wood sectors must stop developing new plantations on peat and plan to phase-out existing drainage-based plantations before they are flooded. If no ...
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Living with floods in the Mahanadi Delta, India
In October 2013, one of the fiercest cyclones to hit the Bay of Bengal for many years made landfall on the low-lying delta coast of the Indian state of Odisha. With winds battering the coastline at more than 200 kilometres per hour, the structural damage from cyclone Phailin was intense. Thousands of straw, timber and bamboo homes were destroyed across the delta of the River Mahanadi, one of ...
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Sea-level rise and sinking land make deltas extremely vulnerable
In July 2014 we published a photo essay that highlighted the ecological and economic importance of the world’s deltas, pointing out that they are home to nearly half a billion people and provide critical habitat for innumerable plant and animal species. That photo essay also pointed out the danger deltas face: Sea-level rise and human alterations to river systems are threatening to turn the ...
By Ensia
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The approach and countermeasures to solve water resource problems and reconstructing a good ecological environment in Yangtze Delta Region
The Yangtze Delta Region is now suffering from a water resources crisis and ecological destruction. An integral solution to these problems is proposed in this paper. In this scheme, a dam is built at the mouth of Hangzhou Bay, which will provide a ca.40 billion m³ freshwater reservoir under the prerequisite of keeping normal the water level of Hangzhou Bay. The reservoir will connect with the ...
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Not in my back yard — international shipments of waste and the environment
Waste without borders: Zhang Guofu, 35, makes EUR 700 a month, a huge wage in provincial China, sifting through waste that includes shopping bags from a British supermarket chain and English-language DVDs. The truth is that waste placed in a bin in London, can quite easily end up 5 000 miles away in a recycling factory in China's Pearl River delta. Waste of all descriptions is on the move. ...
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Water resourses management and natural environment changes in ancient Pleurona, Greece
The site of New Pleurona, a well fortified city of the Hellenistic period, is located in the western part of Greece. Archaeological and geophysical evidence indicates that the city, during its existence, was connected to the sea. The geomorphological changes are linked to the delta's progression of the two neighboring rivers, Acheloos and Evinos. In addition to the city's ...
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Hand in hand: wetland conservation and tourism in Senegal
I recently got the chance to experience the natural beauty of Djoudj National Park in Senegal for the first time and see its conservation needs. The Djoudj is a paradise for over a million waterbirds and a lot of other biodiversity. It provides an ideal setting for developing sustainable solutions such as tourism that should allow the surrounding villages, visitors and nature to benefit from this ...
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Forecasting selenium discharges to the San Francisco Bay-Delta estuary: Ecological effects of a proposed San Luis drain extension
Selenium discharges to the San Francisco Bay-Delta Estuary (Bay-Delta) could change significantly if federal and state agencies (1) approve an extension of the San Luis Drain to convey agricultural drainage from the western San Joaquin Valley to the North Bay (Suisun Bay, Carquinez Strait, and San Pablo Bay); (2) allow changes in flow patterns of the lower San Joaquin River and Bay-Delta while ...
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Spotlights on ‘Building with Nature’ by Netherlands and Indonesia
Yesterday, a week-long exchange visit about integrated coastal management by the government of Indonesia to the Netherlands was formally opened by Wim Kuijken, Deltacommissioner of the Netherlands. Both Wim Kuijken and Mr. Eko Rudianto, Director of the Ministry of Marine Affairs and Fisheries of Indonesia highlighted ‘Building with Nature’ as an effective approach to sustainable ...
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Researchers Collect Critical Water Quality Data on Multiple Trips to Africa’s Okavango Delta
Overview As part of the National Geographic Okavango Wilderness Project (NGOWP), researchers are using Aqua TROLLs to monitor water quality in the remote river basin, returning annually to collect baseline data with the goal of protecting one of Africa’s most biodiverse landscapes. Challenge Just back from a two-month expedition in the wilds of the Okavango Delta, in Southwest Africa, NGOWP ...
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Mississippi River/Gulf of Mexico draft 2008 Action Plan
More than thirty years after the passage of the Clean Water Act, a large area of iow oxygen or hypoxia, absent most marine life and threatening to inexorably change the biology of the region, continues to form in the Gulf of Mexico during periods in the summer off the coasts of Louisiana and Texas. The hypoxia is primarily caused by excess nutrients originating from the great productivity of ...
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Intelligent electric valve actuation on China’s West-East Pipeline - Case Study
Sector : Oil & Gas Category : Electric Actuators Products : IQ - Standard, IQM - Modulating Overview The West-East Pipeline (WEPP) network is described as the largest and most significant gas industry project ever planned in China. Intended for the development of the western regions in China, the project involves construction of four gas pipelines connecting the eastern markets of China ...
By Rotork plc
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How can we ensure water security for all?
Wetlands International will be speaking about this issue at the upcoming Clinton Global Initiative Annual Meeting. The Clinton Global Initiative was established in 2005 by President Bill Clinton to convene global leaders to create and implement solutions to the world's most pressing challenges. This year’s Annual Meeting will take place on 26-29 September in New York. Water scarcity and ...
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HYPERCLASSIC®- Flocculation Mixer: Clean Drinking Water in Georgetown County
One of our leading products ensures reliable mixing in the flocculation basins of a drinking water treatment plant in the Southeastern USA. Drinking water treatment is one of the most important public tasks worldwide. Even where fresh water is available in sufficient quantities, the water must be clarified, filtered, and disinfected to make it safe for human consumption and for supplying to ...
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Biodiversity and its conservation in the Sundarban Mangrove Ecosystem
Abstract. The Sundarban, covering about one million ha in the delta of the rivers Ganga, Brahmaputra and Meghna is shared between Bangladesh (~60%) and India (~40%), and is the world’s largest coastal wetland. The area experiences a subtropical monsoonal climate with an annual rainfall of 1,600–1,800 mm and severe cyclonic storms. Enormous amounts of sediments carried by the rivers contribute to ...
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Projection of future streamflow changes of the Pearl River basin in China using two delta-change methods
Considerable biases in precipitation simulations in climate models have required the adoption of delta-change approaches to construct future precipitation scenarios for hydrological climate change impact studies. However, different delta-change methods yield different future precipitation scenarios that might significantly affect the projected future streamflow. To assess these effects, two ...
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RichWaterWorld Project - Case Study
Project name RichWaterWorld Partners Alliander | Alterra | B-Ware | Meteo Group | Park Lingezegen | Radboud Universiteit | Royal Eijkelkamp Country The Netherlands Background of RichWaterWorld Water is at the very focus of global attention: Climate change has serious consequences on wateravailability, especially in the higher-lying deltas, meaning the river and water systems in rural ...
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Cities are finally treating water as a resource, not a nuisance
From Houston to Melbourne, the surprising ways urban areas are dealing with water woes Memorial Day barbecues and parades were thwarted this year in Houston when a massive storm dumped more than 10 inches of rain in two days, creating a Waterworld of flooded freeways, cars, houses and businesses, leaving several people dead and hundreds in need of rescue. But it was a predictable disaster. ...
By Ensia
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