In a desert far from the Arabian peninsula, the world's biggest concentrating solar power (CSP) project has run into unexpected opposition ? from environmentalists.
Spurred on by pledges of financial support for renewable energy from the US government, electrical utilities in the country's arid south-west have been acquiring huge tracts of desert on which they hope to harvest sunlight to generate electricity.
It is a development that many environmentalists concerned about climate change applaud. But others are horrified by the damage that such projects could cause to delicate ecosystems.
Basin and Range Watch, a group of volunteers dedicated to preserving the deserts of California and Nevada, is one of several environmental organisations campaigning against BrightSource Energy's US$2 billion (Dh7.34bn) 500 megawatt (MW) solar project on 4,000 acres of public land near Death Valley, in the Mojave Desert.
The Californian firm has already secured a deal to supply 1,300MW of power to the utility Southern California Edison from solar projects it plans to develop in the region.
But installing an array of 318,000 parabolic sun-tracking mirrors at its Ivanpah site, near California's border with Nevada, would involve "extensive grading and removal of existing desert soils, resulting in the potential for increased erosion", Basin and Range Watch claims.
Herbicides would be sprayed to keep weeds down, and waste from the project would contain "mercury, lead, cadmium, copper, and other substances hazardous to human and environmental health".
"In other words, this will be an industrial site, not a green project," the group says.
An even bigger worry to the opponents of such developments is that they would slurp up scarce supplies of groundwater from aquifers beneath the desert, threatening the water supply tapped by some deep-rooted desert plants and used for irrigation by local farmers growing fruit and vegetables.
Unlike photovoltaic solar projects, which turn sunlight directly into electricity, CSP harnesses the sun's rays to boil water, producing steam to drive turbines. The steam must then be condensed back into liquid for re-use in the plant's boiler, usually with the help of additional water for cooling.
Other concerns are that roads and construction activity would disrupt habitats for desert animals, including endangered species such as desert tortoises.
Then there is the threat of dust storms resulting from damage to biotic crusts, the sensitive networks of algae, bacteria and lichens that can be destroyed simply by walking on them.
"They don't extend more than a few millimetres below the surface. Just by being there, they hold the dirt and silt in place," says Darren Sandquist, a biologist at California State University in Fullerton.
"It's certainly going to damage some of the ecology," he says of the power projects.
"I think that's a trade-off we have to accept. It's part of becoming less reliant on oil, and more on solar and wind power."
In Abu Dhabi, officials at Masdar, the Government's renewable energy company, have also been pondering this trade-off as the company proceeds with plans to develop the emirate's first CSP project, the 100MW Shams 1 power plant scheduled for start-up in 2011.
Ziad Tassabehji, the company's director of utilities and asset management, says Masdar favours dry cooling, which uses up to 25 times less water than standard wet cooling designs.
That is not an easy engineering proposition in the scorching Arabian Desert, but efficient new technology for drawing air through cooling towers is already in use at some large thermal power plants.
Masdar is working with the UAE's Environment Agency to ensure minimal disruption to the ecosystem, and it will not be spraying herbicides. Instead it plans to grow grass beneath the reflectors, which will be watered when the mirrors are cleaned.
As for dust storms, Abu Dhabi's sand is very fine, and the compacting process during the site's development can create a thicker surface crust, Mr Tassabehji says.
@Email:tcarlisle@thenational.ae
BEETLEJUICE BEETLEJUICE
Starring: Winona Ryder, Michael Keaton, Jenny Ortega
Director: Tim Burton
Rating: 3/5
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COMPANY PROFILE
Name: Mamo
Year it started: 2019 Founders: Imad Gharazeddine, Asim Janjua
Based: Dubai, UAE
Number of employees: 28
Sector: Financial services
Investment: $9.5m
Funding stage: Pre-Series A Investors: Global Ventures, GFC, 4DX Ventures, AlRajhi Partners, Olive Tree Capital, and prominent Silicon Valley investors.
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COMPANY PROFILE
Founders: Alhaan Ahmed, Alyina Ahmed and Maximo Tettamanzi
Total funding: Self funded
The specs
Engine: Long-range single or dual motor with 200kW or 400kW battery
Transmission: Single-speed automatic
Max touring range: 620km / 590km
Price: From Dh250,000 (estimated)
Profile of Tarabut Gateway
Founder: Abdulla Almoayed
Based: UAE
Founded: 2017
Number of employees: 35
Sector: FinTech
Raised: $13 million
Backers: Berlin-based venture capital company Target Global, Kingsway, CE Ventures, Entrée Capital, Zamil Investment Group, Global Ventures, Almoayed Technologies and Mad’a Investment.
Ant-Man and the Wasp
Director: Peyton Reed
Starring: Paul Rudd, Evangeline Lilly, Michael Douglas
Three stars
How to protect yourself when air quality drops
Install an air filter in your home.
Close your windows and turn on the AC.
Shower or bath after being outside.
Wear a face mask.
Stay indoors when conditions are particularly poor.
If driving, turn your engine off when stationary.
What to watch out for:
Algae, waste coffee grounds and orange peels will be used in the pavilion's walls and gangways
The hulls of three ships will be used for the roof
The hulls will painted to make the largest Italian tricolour in the country’s history
Several pillars more than 20 metres high will support the structure
Roughly 15 tonnes of steel will be used
The Buckingham Murders
Starring: Kareena Kapoor Khan, Ash Tandon, Prabhleen Sandhu
Director: Hansal Mehta
Rating: 4 / 5
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Step by step
2070km to run
38 days
273,600 calories consumed
28kg of fruit
40kg of vegetables
45 pairs of running shoes
1 yoga matt
1 oxygen chamber
COMPANY%20PROFILE
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Greatest of All Time
Starring: Vijay, Sneha, Prashanth, Prabhu Deva, Mohan
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Dengue%20fever%20symptoms
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Teams
Pakistan: Sarfraz Ahmed (captain), Mohammad Hafeez, Sahibzada Farhan, Babar Azam, Shoaib Malik, Asif Ali, Shadab Khan, Shaheen Shah Afridi, Usman Khan Shanwari, Hasan Ali, Imad Wasim, Faheem Ashraf.
New Zealand: Kane Williamson (captain), Corey Anderson, Mark Chapman, Lockie Ferguson, Colin de Grandhomme, Adam Milne, Colin Munro, Ajaz Patel, Glenn Phillips, Seth Rance, Tim Seifert, Ish Sodhi, Tim Southee, Ross Taylor.
COMPANY%20PROFILE%20
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The Penguin
Starring: Colin Farrell, Cristin Milioti, Rhenzy Feliz
Creator: Lauren LeFranc
Rating: 4/5
CRICKET%20WORLD%20CUP%20LEAGUE%202
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The specs
Engine: 1.5-litre turbo
Power: 181hp
Torque: 230Nm
Transmission: 6-speed automatic
Starting price: Dh79,000
On sale: Now
Key figures in the life of the fort
Sheikh Dhiyab bin Isa (ruled 1761-1793) Built Qasr Al Hosn as a watchtower to guard over the only freshwater well on Abu Dhabi island.
Sheikh Shakhbut bin Dhiyab (ruled 1793-1816) Expanded the tower into a small fort and transferred his ruling place of residence from Liwa Oasis to the fort on the island.
Sheikh Tahnoon bin Shakhbut (ruled 1818-1833) Expanded Qasr Al Hosn further as Abu Dhabi grew from a small village of palm huts to a town of more than 5,000 inhabitants.
Sheikh Khalifa bin Shakhbut (ruled 1833-1845) Repaired and fortified the fort.
Sheikh Saeed bin Tahnoon (ruled 1845-1855) Turned Qasr Al Hosn into a strong two-storied structure.
Sheikh Zayed bin Khalifa (ruled 1855-1909) Expanded Qasr Al Hosn further to reflect the emirate's increasing prominence.
Sheikh Shakhbut bin Sultan (ruled 1928-1966) Renovated and enlarged Qasr Al Hosn, adding a decorative arch and two new villas.
Sheikh Zayed bin Sultan (ruled 1966-2004) Moved the royal residence to Al Manhal palace and kept his diwan at Qasr Al Hosn.
Sources: Jayanti Maitra, www.adach.ae