'Sponge city' technology could help the Gulf prevent flooding caused by climate change


Patrick Ryan
  • English
  • Arabic

When you think of regions afflicted by flooding and heavy rainfall, the Middle East may not be the first one that springs to mind.

That said, recent floods that brought Fujairah and Muscat in Oman to a standstill could soon become a regular occurrence, experts have warned.

Part of the solution to curb the fallout from flash flooding could be to transform cities in the region into what essentially amounts to giant sponges, allowing water to be drained away safely.

Leading voices in the sector believe it could be the answer to a problem that will only become more frequent due to the onset of climate change and rising global temperatures.

We are a region that has lots of humidity and high temperatures, and that has the potential to result in episodes of extreme storms
May Faraj,
WSP Middle East

“We need to take climate change seriously,” said May Faraj, senior advisory director for environment and sustainability at engineering consultants WSP Middle East.

"The warmer the air gets here, the more intense the precipitation will be.

“We are a region that has lots of humidity and high temperatures, and that has the potential to result in episodes of extreme storms.

“It won’t happen immediately but it is going to happen.”

She said the sponge city model was one that would work well in the Middle East.

The term is used to describe urban areas with abundant natural areas such as trees, lakes and parks, or other good designs intended to absorb rain and prevent flooding, according to the World Economic Forum (WEF).

Cities that have already adopted the model through improved drainage systems, inner city gardens and plant-edged sidewalks include Cardiff in the UK, Shanghai in China and New York in the US.

One of the major benefits of sponge cities is they hold water in rivers, greenery and soil, making them more resilient to droughts, which could be a key appeal in the Middle East, said Ms Faraj.

“The Middle East has a water scarcity issue and this model would help tackle that,” she said.

“It is easier to collect the water that has been naturally absorbed into storage units in the ground rather than seeing a lot of it being lost to evaporation.

“This water can then be filtered and reused.”

Capturing urban water

Chandra Dake, chief executive of Dech Rechsand, believes sponge cities could be the answer to flooding problems in the region. Photo: Dech Rechsand
Chandra Dake, chief executive of Dech Rechsand, believes sponge cities could be the answer to flooding problems in the region. Photo: Dech Rechsand

Natural solutions to absorbing urban water are 50 per cent more affordable than man-made alternatives, as well as being 28 per cent more effective, according to a recent WEF report.

One of the major stumbling blocks to the wider adoption of the model has been the perception it would be prohibitively expensive to install new drainage systems across cities.

However, that is not necessarily the case, said Ms Faraj.

“Cost is definitely an issue but the beauty of this system is you can retrofit a lot, so you don’t have to completely rip up everything you already have in place,” she said.

“It has already been implemented in Hong Kong, Singapore and New Zealand, and they have had a lot of success stories already.”

Another expert said the heavy flooding witnessed recently in Fujairah and Muscat could have been alleviated by the creation of flood plains — low-lying areas that can absorb water.

“You could have a storage facility every few kilometres that would absorb excess water for up to a decade, keeping it clean the whole time,” said Chandra Dake, chief executive of Dech Rechsand, a Dubai company specialising in sustainable solutions.

“They can vary in size, but you can build them as big as soccer pitches if you need to. In the event of heavy rainfall, they would act as catchment areas.”

One solution is to use permeable alternatives when it comes to drainage systems.

Mr Dake suggested systems could be overhauled with permeable materials.

An example of this is curbs made from sustainable materials such as sand rather than concrete, which would allow the water to be absorbed directly into the ground.

“There is a perception the [Middle East] doesn’t need to worry about creating defences against flooding because it happens here so rarely,” said Mr Dake.

“Recent events and the onset of climate change are forcing us to rethink those views.

“We anticipate we will see pilot sponge city projects in the region that will increase in numbers.”

2019 ASIAN CUP FINAL

Japan v Qatar
Friday, 6pm
Zayed Sports City Stadium, Abu Dhabi

The specs
  • Engine: 3.9-litre twin-turbo V8
  • Power: 640hp
  • Torque: 760nm
  • On sale: 2026
  • Price: Not announced yet
FROM%20THE%20ASHES
%3Cp%3EDirector%3A%20Khalid%20Fahad%3C%2Fp%3E%0A%3Cp%3EStarring%3A%20Shaima%20Al%20Tayeb%2C%20Wafa%20Muhamad%2C%20Hamss%20Bandar%3C%2Fp%3E%0A%3Cp%3ERating%3A%203%2F5%3C%2Fp%3E%0A
MATCH INFO

Karnatake Tuskers 114-1 (10 ovs)

Charles 57, Amla 47

Bangla Tigers 117-5 (8.5 ovs)

Fletcher 40, Moores 28 no, Lamichhane 2-9

Bangla Tiger win by five wickets

Despacito's dominance in numbers

Released: 2017

Peak chart position: No.1 in more than 47 countries, including the United States, the United Kingdom, Australia and Lebanon

Views: 5.3 billion on YouTube

Sales: With 10 million downloads in the US, Despacito became the first Latin single to receive Diamond sales certification

Streams: 1.3 billion combined audio and video by the end of 2017, making it the biggest digital hit of the year.

Awards: 17, including Record of the Year at last year’s prestigious Latin Grammy Awards, as well as five Billboard Music Awards

SPECS
%3Cp%3E%3Cstrong%3EEngine%3A%3C%2Fstrong%3E%20Dual%20electric%20motors%20with%20102kW%20battery%20pack%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EPower%3A%20%3C%2Fstrong%3E570hp%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ETorque%3A%3C%2Fstrong%3E%20890Nm%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERange%3A%3C%2Fstrong%3E%20Up%20to%20428km%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EOn%20sale%3A%3C%2Fstrong%3E%20Now%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EPrice%3A%20%3C%2Fstrong%3EFrom%20Dh1%2C700%2C000%3C%2Fp%3E%0A
Global Fungi Facts

• Scientists estimate there could be as many as 3 million fungal species globally
• Only about 160,000 have been officially described leaving around 90% undiscovered
• Fungi account for roughly 90% of Earth's unknown biodiversity
• Forest fungi help tackle climate change, absorbing up to 36% of global fossil fuel emissions annually and storing around 5 billion tonnes of carbon in the planet's topsoil

MATCH INFO

Manchester City 6 Huddersfield Town 1
Man City: Agüero (25', 35', 75'), Jesus (31'), Silva (48'), Kongolo (84' og)
Huddersfield: Stankovic (43')

UAE currency: the story behind the money in your pockets
UAE players with central contracts

Rohan Mustafa, Ashfaq Ahmed, Chirag Suri, Rameez Shahzad, Shaiman Anwar, Adnan Mufti, Mohammed Usman, Ghulam Shabbir, Ahmed Raza, Qadeer Ahmed, Amir Hayat, Mohammed Naveed and Imran Haider.

Scoreline

Germany 2

Werner 9', Sane 19'

Netherlands 2

Promes 85', Van Dijk 90'

Specs

Engine: 51.5kW electric motor

Range: 400km

Power: 134bhp

Torque: 175Nm

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UK-EU trade at a glance

EU fishing vessels guaranteed access to UK waters for 12 years

Co-operation on security initiatives and procurement of defence products

Youth experience scheme to work, study or volunteer in UK and EU countries

Smoother border management with use of e-gates

Cutting red tape on import and export of food

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The%20specs
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Dust and sand storms compared

Sand storm

  • Particle size: Larger, heavier sand grains
  • Visibility: Often dramatic with thick "walls" of sand
  • Duration: Short-lived, typically localised
  • Travel distance: Limited 
  • Source: Open desert areas with strong winds

Dust storm

  • Particle size: Much finer, lightweight particles
  • Visibility: Hazy skies but less intense
  • Duration: Can linger for days
  • Travel distance: Long-range, up to thousands of kilometres
  • Source: Can be carried from distant regions
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Fuel economy, combined: 13.8L/100km
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Price: From Dh801,800
if you go

The flights

Etihad, Emirates and Singapore Airlines fly direct from the UAE to Singapore from Dh2,265 return including taxes. The flight takes about 7 hours.

The hotel

Rooms at the M Social Singapore cost from SG $179 (Dh488) per night including taxes.

The tour

Makan Makan Walking group tours costs from SG $90 (Dh245) per person for about three hours. Tailor-made tours can be arranged. For details go to www.woknstroll.com.sg

Engine: 3.5-litre V6

Transmission: eight-speed automatic

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On sale: now

While you're here
Roll of honour 2019-2020

Dubai Rugby Sevens

Winners: Dubai Hurricanes

Runners up: Bahrain

 

West Asia Premiership

Winners: Bahrain

Runners up: UAE Premiership

 

UAE Premiership

Winners: Dubai Exiles

Runners up: Dubai Hurricanes

 

UAE Division One

Winners: Abu Dhabi Saracens

Runners up: Dubai Hurricanes II

 

UAE Division Two

Winners: Barrelhouse

Runners up: RAK Rugby

The details

Heard It in a Past Life

Maggie Rogers

(Capital Records)

3/5

Brief scores:

Toss: Sindhis, elected to field first

Pakhtoons 137-6 (10 ov)

Fletcher 68 not out; Cutting 2-14

Sindhis 129-8 (10 ov)

Perera 47; Sohail 2-18

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Zidane's managerial achievements

La Liga: 2016/17
Spanish Super Cup: 2017
Uefa Champions League: 2015/16, 2016/17, 2017/18
Uefa Super Cup: 2016, 2017
Fifa Club World Cup: 2016, 2017

FFP EXPLAINED

What is Financial Fair Play?
Introduced in 2011 by Uefa, European football’s governing body, it demands that clubs live within their means. Chiefly, spend within their income and not make substantial losses.

What the rules dictate? 
The second phase of its implementation limits losses to €30 million (Dh136m) over three seasons. Extra expenditure is permitted for investment in sustainable areas (youth academies, stadium development, etc). Money provided by owners is not viewed as income. Revenue from “related parties” to those owners is assessed by Uefa's “financial control body” to be sure it is a fair value, or in line with market prices.

What are the penalties? 
There are a number of punishments, including fines, a loss of prize money or having to reduce squad size for European competition – as happened to PSG in 2014. There is even the threat of a competition ban, which could in theory lead to PSG’s suspension from the Uefa Champions League.

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Expert input

If you had all the money in the world, what’s the one sneaker you would buy or create?

“There are a few shoes that have ‘grail’ status for me. But the one I have always wanted is the Nike x Patta x Parra Air Max 1 - Cherrywood. To get a pair in my size brand new is would cost me between Dh8,000 and Dh 10,000.” Jack Brett

“If I had all the money, I would approach Nike and ask them to do my own Air Force 1, that’s one of my dreams.” Yaseen Benchouche

“There’s nothing out there yet that I’d pay an insane amount for, but I’d love to create my own shoe with Tinker Hatfield and Jordan.” Joshua Cox

“I think I’d buy a defunct footwear brand; I’d like the challenge of reinterpreting a brand’s history and changing options.” Kris Balerite

 “I’d stir up a creative collaboration with designers Martin Margiela of the mixed patchwork sneakers, and Yohji Yamamoto.” Hussain Moloobhoy

“If I had all the money in the world, I’d live somewhere where I’d never have to wear shoes again.” Raj Malhotra

Specs

Engine: Duel electric motors
Power: 659hp
Torque: 1075Nm
On sale: Available for pre-order now
Price: On request

Volvo ES90 Specs

Engine: Electric single motor (96kW), twin motor (106kW) and twin motor performance (106kW)

Power: 333hp, 449hp, 680hp

Torque: 480Nm, 670Nm, 870Nm

On sale: Later in 2025 or early 2026, depending on region

Price: Exact regional pricing TBA

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Updated: September 19, 2022, 9:26 AM`