Water Shortages: Is the World Running out of Water?

It covers 71% of the Earths surface and is vital for all known forms of life, and right now it’s giving us a warning

Almost Half the Global Population Could Be Living in Areas of High Water Stress by 2030 with Five of the Top 10 Global Risks Having a Water Element to Them

Ask Americans and in particular, residents of their most populous state California what they think of water. The state gets 75% of it from snow, and in 2014, 70% of its usual snowpack was missing. The year earlier it was the driest on record. Britain’s problem has been exactly the opposite: biblical flooding in recent years. The Thames has been flowing at its highest level, for the longest period, since 1883, and storms across south-western England have left Brits kayaking through their towns.

In 2013, the world had a record number of $1 billion weather disasters – 41, topping the previous-just three years earlier. Almost all of the 41 involve water – flooding, drought or damage from cyclones, and there are three reasons we’re seeing more water issues. The first is population growth. The drought in California is made worse by the fact that the state’s population is one third bigger than in 1990 with 10 million more people living there today.

The American drought has crippled California’s farmers, who grow 60% of the countries produce, and has left the nation with its smallest cattle herd in 60 years, sending beef prices to record highs. Economists estimate that the flooding in Britain could shave a full point off GDP. Water problems are local. England’s flooding has to be fixed in England and the Californian drought in California.

We Have to Learn to Make Space for Water. You’re Not Going to Hold Back the Flood. You Have to Anticipate, and Adapt

Water use in California has already changed dramatically. In 1972, the average resident of Los Angeles used 715 litres a day. Today, the average is 465 litres. The Los Angeles Metro area has 50% more people than it did 20 years ago, but it uses the same amount of water.

Extreme Weather from Heatwaves, to Deluge Increases the Threat of Disease, Ruins Food Stocks, Drives Millions of People into Poverty and Could Lead to War, the International Panel on Climate Change Warned

“Nobody on this planet is going to be untouched by the impacts of climate change,” said Rajendra Pachauri, the IPCC chairman.

Unless we act dramatically and quickly, science tells us our climate and our way of life are literally in jeopardy.

The amount of water on earth doesn’t change – no ‘new’ water is being created and no water is being destroyed. It is simply used, it evaporates and is used again. In a world of big problems, water problems are among the biggest. But unlike many other big problems like climate change and economic inequality, most water problems are solvable, and this one requires us simply to consume less.

Despite average rainfall of around 2,450mm a year, twice the amount that falls in the UK, Singapore has historically relied on importing water. All it takes in Philadelphia is 6mm of rainfall for the city’s sewerage network to overflow into the Schuylkill and Delaware rivers, polluting its main source of drinking water. In April 2012, the city signed an ambitious agreement with the EPA to spend $2bn over the next 25 years transforming a third of its hard surfaces into 10,000 acres of green spaces.

There are some fundamental issues holding progress back. Water is too cheap and our attitude to finite resources must change.

Straw Now Offers a Simple and Effective Home-grown Solution to the Uk’s Housing Needs

Straw-bale construction

Hey, fancy buying a straw house?  Straw-bale construction is a building method that uses bales of straw as structural elements and building insulation. These environmentally friendly homes use prefabricated timber-framed walls that are packed with straw bales and  are the result of an engineering research project led by the University of Bath.

Straw houses have been built on the African plains since the Paleolithic Era and  are on sale on the open market for the first time in the UK after becoming eligible for standard mortgages.

Don’t be Surprised if the Big Bad Wolf Comes Calling

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Though straw walls might be most readily linked to a story of pigs making the wrong  construction decisions, the team behind these homes says the material offers real potential for ultra low carbon housing throughout the UK.

Compressed and Plastered Straw Bale Walls Are Also Resistant to Fire

UK's first straw houses to be offered on the open market in Bristol
UK’s first straw houses to be offered on the open market in Bristol

Researchers  stressed  that  it is a safe and  robust  construction material,  boasting environmental  advantages such as insulation efficiency  that reduce  energy bills by up to 90%

Building with Straw Could Be a Turning Point in Our Trajectory Towards a Low Carbon Future

Until now the Straw homes have been used for  bespoke building projects and financed through specialist lenders but now a row of straw houses in Bristol have become the first to secure building certification making  them eligible for a standard mortgage.

You Can Huff and Puff but These Houses Won’t Blow Down!

“I believe  there’s a lot of misconception about using straw — stories about the Three Little Pigs and the Big Bad Wolf,” Professor Pete Walker told the BBC.

The only hint this new  construction method is  a ‘truth window’ in each property where a section of straw wall will be visible through a window.  Although these are not the first houses in the UK to be built using straw bales, they are the first to be built for any buyer on the open market.

The researchers worked with specialist architectural firm Modcell.

The houses are on a street of traditional brick-built homes in Bristol and are covered  in brick to fit in with the surroundings.  The team says this development should help move building with straw to the wider market.

As part of this EU-funded project, Prof Walker and his colleagues have systematically tested and refined the technology – including testing its structural and weight-bearing properties, and its thermal insulation.

Facts

  • Straw is the leftover stalks from cereal crops
  • Four million tonnes of this leftover straw is produced every year by the UK
  • According to the Agricultural and Horticultural Development Board it takes about seven tonnes of straw to build a three-bedroom house
  • There  is potential to grow the material for more than half a million new homes every year in British fields.

These are the first straw-bale homes  built speculatively for the open market a very exciting time for this building technology, as the  more we build out of renewable materials like straw and timber, the less carbon will be in the atmosphere, so we can reduce climate change effects.

About Dean Jones

Dean is an Associate in AECOM’s Programme Leadership Practice. Dean joined AECOM from Care UK, the UK’s largest independent provider of health and social care, where he was a Programme Manager and delivered a £250m investment growth programme over 2012/15 which increased Care Uk’s number of homes circa 33%. Dean was also Programme Manager for a £60m Suffolk programme to build ten new care homes and ten day clubs, bringing much needed additional nursing and specialist dementia care to the Suffolk community.

 

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