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MessagePosté le: Dim 30 Sep - 02:19:52 (2018)    Sujet du message: Nike Air VaporMax Plus Rouge En ligne Répondre en citant

SAN FRANCISCO Nike Air Max 270 Flyknit Homme Triple Black Soldes , July 17 (Xinhua) -- A new analysis has projected that risks for water conflict will increase over the next 15 to 30 years in four hotspot regions, namely the Middle East, Central Asia, the Ganges-Brahmaputra-Meghna basin, and the Orange and Limpopo basins in southern Africa.

Published in the journal Global Environmental Change, a peer-reviewed academic journal covering research on environmental change, the analysis addresses the reality that while more than 1,400 new dams or water diversion projects are planned or already under construction Nike Air Max 270 Flyknit Oreo Noir Blanche Homme Pas Cher , many of them are on rivers flowing through multiple nations, fueling the potential for increased water conflict between some countries.

As part of the United Nations' Transboundary Waters Assessment Program, and with the participation of researchers from the United States, Spain and Chile, the river basins study uses a comprehensive combination of social, economic, political and environmental factors to identify areas around the world most at-risk for what it calls "hydro-political" strife.

"If two countries have agreed on water flow and distribution when there's a dam upstream, there usually is no conflict Nike Air Max 270 Be True Homme Multicolor Pas Cher ," said Eric Sproles, an Oregon State University (OSU) hydrologist and a co-author on the study.

"Unfortunately, that isn't the case with many other river systems, where a variety of factors come into play, including strong nationalism, political contentiousness, and drought or shifting climate conditions," Sproles said.

The Nile River in Africa Acheter Nike Air Max 270 Blanche Noir , much of southern Asia, the Balkans in southeastern Europe, and upper South America are all areas where new dams are under construction and neighboring countries face increasing water demand, may lack workable treaties or have not even discussed the issue.

Asia has the highest number of dams proposed or under construction on transboundary basins of any continent with 807, followed by South America, 354; Europe, 148; Africa, 99; and North America Acheter Nike Air Max 270 Flyknit Marron Argent , 8. However, Africa has a higher level of hydro-political tension, according to the researchers, with more exacerbating factors.

The Nile River, for example, is one of the more contentious areas of the globe. Ethiopia is constructing several dams on tributaries of the Nile in its uplands, which will divert water from countries downstream, including Egypt. Contributing to the tension is drought and a growing population more dependent on a water source that may be diminishing.

"When you look at a region Homme Nike Air Max 270 Noir Or Soldes , the first thing you try to identify is whether there is a treaty and, if so, is it one that works for all parties and is flexible enough to withstand change," Sproles was quoted as explaining in a news release from OSU on Monday.

"It's easy to plan for water if it is the same every year -- sometimes even when it's low. When conditions vary -- and drought is a key factor -- the tension tends to increase and conflict is more likely to occur."

The conflict isn't restricted to human consumption, the researchers noted. There is a global threat to biodiversity in many of the world's river systems, and the risk of species extinction is moderate to very high in 70 percent of the area of transboundary river basins. And other factors leading to conflict include political and economic instability, and armed conflict, the analysis showed.

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LONDON, July 17 (Xinhua) -- The first major contracts for Britain's biggest ever rail project, worth 8.7 billion U.S. dollars, were announced Monday by Transport Secretary Chris Grayling.

The high-speed HS2 rail will eventually link London with central and northern England, with the total cost currently said to be around 74 billion U.S. dollars.

Grayling said the first major infrastructure contracts will cover the main civil engineering work on the first phase of HS2 between London and Birmingham. The work includes the construction of tunnels, bridges, embankments and viaducts.

The first phase between London and Birmingham is scheduled to open in 2026 Homme Nike Air VaporMax Plus Noir En ligne , with phase two to Manchester in the north-west and Leeds in the north-east due for completion in 2033.

Grayling said: "This is a hugely important step in the construction of Britain's new railway. HS2 will deliver vital links between some of our country's biggest cities, helping to drive economic growth and productivity in the north and midlands."

David Higgins, chairman of HS2 Ltd, said: "This is a huge day for the HS2 project and for the country. These contracts will support 16,000 jobs in Britain and will create opportunities for thousands of SMEs."

The Department for Transport (DfT) said HS2 construction will create up to 25,000 jobs and 2,000 apprenticeships. A further 3,000 people will operate HS2 network Homme Nike Air VaporMax Plus Rouge En ligne , and it is estimated that growth around new HS2 stations will create another 100,000 jobs.

A number of joint venture consortia have been awarded the first contracts. With preparatory works already underway on phase one, the DfT says main construction work will start in 201819.

Grayling published Monday a new government bill for the next phase of HS2, from Birmingham to Crewe in northern England. This will cut journey times to London from the north of England and Scotland in 2027, six years earlier than planned. Grayling also confirmed the final leg of HS2, or phase 2, covering the stretches to Manchester
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