we need to revise [how people get water] and understand that

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How a city that floods is running out of water

canada goose clearance sale One of canada goose uk outlet the world largest cities, Mexico City is home to about 21 million people rising to 27 million if you include the surrounding areas. About 20% of Mexico population lives there. canada goose clearance sale

canada goose store Among other challenges, such a large Canada Goose Coats On Sale population puts a costly strain on Mexico City water supplies. In fact, the parts of Mexico City infrastructure that supply water are crumbling. Its natural water canada goose reserves are also at risk; if trends canada goose outlet continue, they are expected to dry out as soon as in 30 years. The wet season between June and September, in particular, brings frequent flash floods. canada goose store

canada goose deals Flooding events are predicted to intensify as climate change has been canada goose uk black friday linked to increasingly erratic weather patterns. This influx of water brings many problems. Traffic stops as the water floods roads. Inadequate infrastructure and canada goose coats flash floods can cause the Canada Goose online sewage system to overflow. Rubbish disposed of on the streets often clogs pipe drains, backing canada goose factory sale up the system. That can have serious consequences quickly, since Mexico City produces about 40,000 litres of sewage every second. canada goose deals

Canada Goose Jackets This means that workers frequently have to fix the water drainage system, (Emisor Central, pictured here). Much of this is because of buy canada goose jacket the inefficient and ageing infrastructure of Mexico City water networks: some 40% of the water is lost. Canada Goose Jackets

cheap Canada Goose The poorest Canada Goose Jackets residents are the worst uk canada goose affected. Some are not connected to the city water network and must rely on buying it canada goose black friday sale per litre. This is the most uk canada goose outlet expensive way to access water, explains Arnoldo Matus Kramer, the city chief resilience officer. we need to revise [how people get water] and understand that access to water is a human right. Canada Goose Online credit: buy canada goose jacket cheap Carlos Cazalis/INSTITUTE) cheap Canada Goose

Canada Goose Outlet As a result, many of the city inhabitants have an interrupted water supply, perhaps only being able to turn on the tap and get water twice a week, says Kramer. While many houses store cheap Canada Goose water tanks to overcome this lack of supply, these are expensive. And they Canada Goose Outlet add another burden: pollution, as lorries are needed to transport water across the city. Canada Goose Outlet

canada goose clearance For instance, the Xochimilco community in the city southernmost district gets new water twice a week on a lorry. The city was built on an Canada Goose Parka island surrounded by a large natural lake basin. But when the Spanish colonised Mexico in the 1500s, they dried out the lake to build a bigger city. canada goose clearance

canadian goose jacket This means that canada goose uk shop deep underground, Mexico City has fresh water reservoirs which the city still depends on for about 40% of its water. In theory these natural aquifers should be canada goose coats on sale replenished by rainfall. It can seep through water containment holes like these pictured here in this deforested patch of land. canadian goose jacket

Canada Goose http://www.canadagoosesalesus.com online But the shortage of water in the city means these natural water reserves are being emptied at a rate faster than they can be filled, especially during months of prolonged drought in the dry season. Canada Goose online

Canada Goose sale are exploiting our local aquifers at a very high canada goose clearance rate, says Kramer. the same time, we haven invested enough resources to have a robust monitoring system. So there a lot of uncertainty how the local aquifers work. Some parts of Mexico City are sinking by about 30cm (12inches) per year, the result of the aquifer not being up by water enough to support the ground above. This type of sinking canadian goose jacket has been linked to the earthquake in September 2017 that killed more than 200 people and caused many buildings to collapse. Canada Goose sale

canada goose The subsidence also affects infrastructure above and below ground damaging the very pipes that bring water to people, as well as Canada Goose sale removing their waste. canada goose

Canada Goose Parka Illegal buildings, such as these floating houses (chinampas) which can be found south of Mexico City, also worsen the canada goose store water quality of the canals they occupy. But while more people are canada goose clearance sale becoming aware of this connection, says Kramer, they are less aware of the diminishing water reserves in the aquifers and how this is causing the city to sink. Canada Goose Parka

canada goose coats on sale If the remaining water in the lake basin is lost, it will have another ripple effect. Research shows it will reduce humidity within the city. canada goose coats on sale

buy canada goose jacket Higher temperatures also will cause more water to disappear while at the same time making the parched city ever thirstier. buy canada goose jacket

canada goose black friday sale It a vicious cycle with no easy solution in sight. As a first step, Kramer and his department are developing a monitoring system and identifying the cheap canada goose uk key goals they need to overcome the city many problems. Although originally forecast to be completed in 2012, it is finally expected to be in use at some point in 2018. It spans almost 38 miles (62km) and is 200m deep below the ground canada goose black friday sale.

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