Scientists are preparing to test a radical new way of tackling climate change by deliberately dimming the sun.
A team of researchers from Harvard University plans to release a balloon into the skies over the southwest United States in the new year.
Once it reaches an altitude of 20km, the balloon will release a chalky material to bounce the sun’s heat back into space.
Only a tiny amount of material will be released, and the effects will be limited to a few square kilometres. Even so, the experiment has reignited concern about such “geoengineering” solutions to tackling climate change.
The fear is that such schemes may have unintended consequences, solving one problem only to create many others.
Yet there is also mounting concern that time is running out to deal with climate change.
At the UN climate change conference in Poland last week, scientists insisted that CO2 emissions need to be slashed by almost 50 per cent in barely a decade to avert disastrous consequence.
Four former UN climate conference presidents went even further, declaring that decisive action is need in just two years.
Scientists have been issuing such dire warning for decades without any obvious effect. Despite repeated calls on governments to take action on CO2, emissions are expected to reach record levels this year.
Meanwhile, evidence of the need for action continues to mount: 17 of the 18 warmest years on record have occurred since 2001, with the last four being the warmest of all.
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The impact of the rise in global temperatures is also growing. According to the UN, the cost of climate-related disasters last year alone topped half a trillion US dollars.
In the face of such apocalyptic statistics, the reluctance of the major CO2 emitters – principally China, the US and India – to take action is prompting growing interest in radical measures.
And they don’t come much more radical than giving the Earth a sun-screen.
Scientists already know it can work, because Nature has done it countless times – via massive volcanic eruptions.
As recently as 1991, the eruption of Mount Pinatubo in the Philippines injected around 20 million tonnes of sulphur dioxide gas in the stratosphere.
This bounced back so much of the sun’s light that the Earth’s average temperature dipped by 0.5°C for around 18 months.
Given the colossal size of the atmosphere, the effectiveness of this way of cooling the planet is astounding. In effect, adding barely one part per billion of reflective matter to the atmosphere cancelled out over a century’s worth of global warming.
But that also highlights a key concern about geoengineering: the risk of falling foul of the Butterfly Effect.
First coined by a climate researcher in the 1960s, this describes how the atmosphere has a way of amplifying even small tweaks – like the flap of a butterfly’s wing - into big consequences.
The Butterfly Effect is known to stalk attempts to tinker with the amount of sunlight reaching the earth’s surface. During the 1980s, average temperatures over mainland Europe started to rise far more rapidly than expected using global warming models.
Scientists traced the surge to – ironically enough – the clean air campaigns which forced factories to cut back on the amount of gunk they belched into the air.
This also cut the amount of light-reflecting gas and dust they emitted, thus allowing more of the sun’s heat through, triggering a jump in temperature.
That in turn highlights the other concern about geoengineering: its ability to trigger what the Germans call a schlimmbesserung: a "worse bettering", in which a supposed solution actually makes things worse.
Nature again provides worrying insights into some of the potential unintended consequences of dimming the sun. Following the Mt Pinatubo eruption, the darker skies led to cuts in the yields of crops such as rice, wheat and maize.
Some consequences are less obvious. The sulphur dioxide spewed out by the volcano cut visible light levels, but also boosted levels of harmful ultraviolet light – because of its effect on the ozone layer, which normally protects us from this radiation.
The eruption may also have affected the behaviour of the jet stream – the fast-moving currents of air in the stratosphere which can unleash bizarre weather across entire continents.
The scientists behind the planned experiment are fully aware of these lessons from nature, and have taken every precaution to prevent nasty surprises.
The first tests will simply release ice into the stratosphere from the balloon, to check all the systems are working.
The team then plans to move to calcium carbonate dust, and possibly other materials to study their ability to bounce back sunlight.
The amounts involved are so small they will only affect the air around the balloon, and will vanish in a matter of hours.
But critics of the experiment fear the experiment will have a permanent impact, by legitimising geoengineering in the minds of politicians.
The attraction of this remedy for global warming has been boosted by a recent UN report suggesting that deliberate solar dimming could cut global temperatures by 1.5°C for as little as USD 1 billion a year.
The prospect of a cheap and quick remedy to the impact of CO2 on global warming is likely to be hard for politicians to resist.
Yet the very success of solar dimming could lead to perhaps the most disastrous unintended consequence of all – by convincing politicians they need do nothing about CO2 levels.
While their effect on global warming might be reduced, ever-greater levels of CO2 would end up in the world’s oceans, making them increasingly acidic – with as yet unknown consequences.
In the end, the only way to find out the truth is via carefully planned scientific experiments. On the face of it, that is exactly what the Harvard team is planning. And it's far preferable to politicians suddenly waking up to the threat and demanding an instant fix which proves anything but.
Robert Matthews is Visiting Professor of Science at Aston University, Birmingham, UK
The biog
Age: 46
Number of Children: Four
Hobby: Reading history books
Loves: Sports
Brief scores
Barcelona 2
Pique 36', Alena 87'
Villarreal 0
THE BIO
Age: 33
Favourite quote: “If you’re going through hell, keep going” Winston Churchill
Favourite breed of dog: All of them. I can’t possibly pick a favourite.
Favourite place in the UAE: The Stray Dogs Centre in Umm Al Quwain. It sounds predictable, but it honestly is my favourite place to spend time. Surrounded by hundreds of dogs that love you - what could possibly be better than that?
Favourite colour: All the colours that dogs come in
Zayed Sustainability Prize
Our legal consultant
Name: Dr Hassan Mohsen Elhais
Position: legal consultant with Al Rowaad Advocates and Legal Consultants.
Allardyce's management career
Clubs (10) - Limerick (1991-1992), Perston North End (1992), Blackpool (1994-1996), Notts County (1997-1999), Bolton Wanderers (1999-2007), Newcastle United (2007-2008), Blackburn Rovers (2008-2010), West Ham United (2011-2015), Sunderland (2016), Crystal Palace (2016-2017)
Countries (1) - England (2016)
The biog
Profession: Senior sports presenter and producer
Marital status: Single
Favourite book: Al Nabi by Jibran Khalil Jibran
Favourite food: Italian and Lebanese food
Favourite football player: Cristiano Ronaldo
Languages: Arabic, French, English, Portuguese and some Spanish
Website: www.liliane-tannoury.com
RESULTS
5pm: Maiden (PA) Dh80,000 1,400m, Winner SS Lamea, Saif Al Balushi (jockey), Ibrahim Al Hadhrami (trainer).
5.30pm: Wathba Stallions Cup Handicap (PA) Dh70,000 1,400m, Winner AF Makerah, Sean Kirrane, Ernst Oertel
6pm: Handicap (PA) Dh80,000 1,600m, Winner Maaly Al Reef, Brett Doyle, Abdallah Al Hammadi
6.30pm: Handicap (PA) Dh90,000 1,600m, Winner AF Momtaz, Antonio Fresu, Musabah Al Muhairi
7pm: Handicap (PA) Dh80,000 2,200m, Winner Morjanah Al Reef, Brett Doyle, Abdallah Al Hammadi
7.30pm: Handicap (TB) Dh100,000 2,200m, Winner Mudarrab, Jim Crowley, Erwan Charpy
INDIA'S%20TOP%20INFLUENCERS
%3Cp%3E%3Cstrong%3EBhuvan%20Bam%3C%2Fstrong%3E%3Cbr%3E%3Ca%20href%3D%22https%3A%2F%2Fwww.instagram.com%2Fbhuvan.bam22%2F%3Fhl%3Den%22%20target%3D%22_self%22%3EInstagram%3C%2Fa%3E%20followers%3A%2016.1%20million%3Cbr%3EBhuvan%20Bam%20is%20a%2029-year-old%20comedian%20and%20actor%20from%20Delhi%2C%20who%20started%20out%20with%20YouTube%20channel%2C%20%E2%80%9CBB%20Ki%20Vines%E2%80%9D%20in%202015%2C%20which%20propelled%20the%20social%20media%20star%20into%20the%20limelight%20and%20made%20him%20sought-after%20among%20brands.%3Cbr%3E%3Cstrong%3EKusha%20Kapila%3C%2Fstrong%3E%3Cbr%3E%3Ca%20href%3D%22https%3A%2F%2Fwww.instagram.com%2Fkushakapila%2F%3Fhl%3Den%22%20target%3D%22_self%22%3EInstagram%3C%2Fa%3E%20followers%3A%203.1%20million%3Cbr%3EKusha%20Kapila%20is%20a%20fashion%20editor%20and%20actress%2C%20who%20has%20collaborated%20with%20brands%20including%20Google.%20She%20focuses%20on%20sharing%20light-hearted%20content%20and%20insights%20into%20her%20life%20as%20a%20rising%20celebrity.%3Cbr%3E%3Cstrong%3EDiipa%20Khosla%3C%2Fstrong%3E%3Cbr%3E%3Ca%20href%3D%22https%3A%2F%2Fwww.instagram.com%2Fdiipakhosla%2F%3Fhl%3Den%22%20target%3D%22_self%22%3EInstagram%3C%2Fa%3E%20followers%3A%201.8%20million%3Cbr%3EDiipa%20Khosla%20started%20out%20as%20a%20social%20media%20manager%20before%20branching%20out%20to%20become%20one%20of%20India's%20biggest%20fashion%20influencers%2C%20with%20collaborations%20including%20MAC%20Cosmetics.%3Cbr%3E%3Cstrong%3EKomal%20Pandey%3Cbr%3E%3C%2Fstrong%3E%3Ca%20href%3D%22https%3A%2F%2Fwww.instagram.com%2Fkomalpandeyofficial%2F%3Fhl%3Den%22%20target%3D%22_self%22%3EInstagram%3C%2Fa%3E%20followers%3A%201.8%20million%3Cbr%3EKomal%20Pandey%20is%20a%20fashion%20influencer%20who%20has%20partnered%20with%20more%20than%20100%20brands%2C%20including%20Olay%20and%20smartphone%20brand%20Vivo%20India.%3Cbr%3E%3Cstrong%3ENikhil%20Sharma%3C%2Fstrong%3E%3Cbr%3E%3Ca%20href%3D%22https%3A%2F%2Fwww.instagram.com%2Fnikkkhil%2F%3Fhl%3Den%22%20target%3D%22_self%22%3EInstagram%3C%2Fa%3E%20followers%3A%201.4%20million%3Cbr%3ENikhil%20Sharma%20from%20Mumbai%20began%20his%20online%20career%20through%20vlogs%20about%20his%20motorcycle%20trips.%20He%20has%20become%20a%20lifestyle%20influencer%20and%20has%20created%20his%20own%20clothing%20line.%3Cbr%3E%3Cem%3ESource%3A%20Hireinfluence%2C%20various%3C%2Fem%3E%3Cbr%3E%3C%2Fp%3E%0A
THE SPECS
Engine: 3.5-litre V6
Transmission: six-speed manual
Power: 325bhp
Torque: 370Nm
Speed: 0-100km/h 3.9 seconds
Price: Dh230,000
On sale: now
MATCH INFO
Manchester City 3
Danilo (16'), Bernardo Silva (34'), Fernandinho (72')
Brighton & Hove Albion 1
Ulloa (20')
MATCH INFO
Syria v Australia
2018 World Cup qualifying: Asia fourth round play-off first leg
Venue: Hang Jebat Stadium, Malayisa
Kick-off: Thursday, 4.30pm (UAE)
Watch: beIN Sports HD
* Second leg in Australia on October 10
Specs
Engine: Duel electric motors
Power: 659hp
Torque: 1075Nm
On sale: Available for pre-order now
Price: On request
MATCH INFO
Chelsea 3 (Abraham 11', 17', 74')
Luton Town 1 (Clark 30')
Man of the match Abraham (Chelsea)
THE SPECS
Engine: 3.6-litre V6
Transmission: eight-speed automatic
Power: 285bhp
Torque: 353Nm
Price: TBA
On sale: Q2, 2020
Dengue%20fever%20symptoms
%3Cp%3EHigh%20fever%20(40%C2%B0C%2F104%C2%B0F)%3Cbr%3ESevere%20headache%3Cbr%3EPain%20behind%20the%20eyes%3Cbr%3EMuscle%20and%20joint%20pains%3Cbr%3ENausea%3Cbr%3EVomiting%3Cbr%3ESwollen%20glands%3Cbr%3ERash%26nbsp%3B%3C%2Fp%3E%0A
Our legal consultant
Name: Dr Hassan Mohsen Elhais
Position: legal consultant with Al Rowaad Advocates and Legal Consultants.
Racecard:
2.30pm: Hamdan bin Rashid Al Maktoun Emirates Breeders Society Challenge; Conditions (PA); Dh40,000; 1,600m
3pm: Handicap; Dh80,000; 1,800m
3.30pm: Jebel Ali Mile Prep Rated Conditions; Dh110,000; 1,600m
4pm: Handicap; Dh95,000; 1,950m
4.30pm: Maiden; Dh65,000; 1,400m
5pm: Handicap; Dh85,000; 1,200m
Our family matters legal consultant
Name: Hassan Mohsen Elhais
Position: legal consultant with Al Rowaad Advocates and Legal Consultants.
BUNDESLIGA FIXTURES
Friday (All UAE kick-off times)
Borussia Dortmund v Eintracht Frankfurt (11.30pm)
Saturday
Union Berlin v Bayer Leverkusen (6.30pm)
FA Augsburg v SC Freiburg (6.30pm)
RB Leipzig v Werder Bremen (6.30pm)
SC Paderborn v Hertha Berlin (6.30pm)
Hoffenheim v Wolfsburg (6.30pm)
Fortuna Dusseldorf v Borussia Monchengladbach (9.30pm)
Sunday
Cologne v Bayern Munich (6.30pm)
Mainz v FC Schalke (9pm)
The specs
Engine: 4.0-litre flat-six
Torque: 450Nm at 6,100rpm
Transmission: 7-speed PDK auto or 6-speed manual
Fuel economy, combined: 13.8L/100km
On sale: Available to order now
Muguruza's singles career in stats
WTA titles 3
Prize money US$11,128,219 (Dh40,873,133.82)
Wins / losses 293 / 149
SQUADS
India
Virat Kohli (captain), Rohit Sharma (vice-captain), Shikhar Dhawan, Ajinkya Rahane, Manish Pandey, Kedar Jadhav, Dinesh Karthik, Mahendra Singh Dhoni (wicketkeeper), Hardik Pandya, Axar Patel, Kuldeep Yadav, Yuzvendra Chahal, Jasprit Bumrah, Bhuvneshwar Kumar, Shardul Thakur
New Zealand
Kane Williamson (captain), Martin Guptill, Colin Munro, Ross Taylor, Tom Latham (wicketkeeper), Henry Nicholls, Ish Sodhi, George Worker, Glenn Phillips, Matt Henry, Colin de Grandhomme, Mitchell Santner, Tim Southee, Adam Milne, Trent Boult
Match info
Wolves 0
Arsenal 2 (Saka 43', Lacazette 85')
Man of the match: Shkodran Mustafi (Arsenal)
Shooting Ghosts: A U.S. Marine, a Combat Photographer, and Their Journey Back from War by Thomas J. Brennan and Finbarr O’Reilly
Zayed Sustainability Prize
BACK%20TO%20ALEXANDRIA
%3Cp%3E%3Cstrong%3EDirector%3A%20%3C%2Fstrong%3ETamer%20Ruggli%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStarring%3A%20%3C%2Fstrong%3ENadine%20Labaki%2C%20Fanny%20Ardant%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%20%3C%2Fstrong%3E3.5%2F5%3C%2Fp%3E%0A
Nayanthara: Beyond The Fairy Tale
Starring: Nayanthara, Vignesh Shivan, Radhika Sarathkumar, Nagarjuna Akkineni
Director: Amith Krishnan
Rating: 3.5/5
The specs: 2018 Harley-Davidson Fat Boy
Price, base / as tested Dh97,600
Engine 1,745cc Milwaukee-Eight v-twin engine
Transmission Six-speed gearbox
Power 78hp @ 5,250rpm
Torque 145Nm @ 3,000rpm
Fuel economy, combined 5.0L / 100km (estimate)
MATCH INFO
FA Cup fifth round
Chelsea v Manchester United, Monday, 11.30pm (UAE), BeIN Sports
Skewed figures
In the village of Mevagissey in southwest England the housing stock has doubled in the last century while the number of residents is half the historic high. The village's Neighbourhood Development Plan states that 26% of homes are holiday retreats. Prices are high, averaging around £300,000, £50,000 more than the Cornish average of £250,000. The local average wage is £15,458.
Brief scores:
England: 290 & 346
Sri Lanka: 336 & 243
Spain drain
CONVICTED
Lionel Messi Found guilty in 2016 of of using companies in Belize, Britain, Switzerland and Uruguay to avoid paying €4.1m in taxes on income earned from image rights. Sentenced to 21 months in jail and fined more than €2m. But prison sentence has since been replaced by another fine of €252,000.
Javier Mascherano Accepted one-year suspended sentence in January 2016 for tax fraud after found guilty of failing to pay €1.5m in taxes for 2011 and 2012. Unlike Messi he avoided trial by admitting to tax evasion.
Angel di Maria Argentina and Paris Saint-Germain star Angel di Maria was fined and given a 16-month prison sentence for tax fraud during his time at Real Madrid. But he is unlikely to go to prison as is normal in Spain for first offences for non-violent crimes carrying sentence of less than two years.
SUSPECTED
Cristiano Ronaldo Real Madrid's star striker, accused of evading €14.7m in taxes, appears in court on Monday. Portuguese star faces four charges of fraud through offshore companies.
Jose Mourinho Manchester United manager accused of evading €3.3m in tax in 2011 and 2012, during time in charge at Real Madrid. But Gestifute, which represents him, says he has already settled matter with Spanish tax authorities.
Samuel Eto'o In November 2016, Spanish prosecutors sought jail sentence of 10 years and fines totalling €18m for Cameroonian, accused of failing to pay €3.9m in taxes during time at Barcelona from 2004 to 2009.
Radamel Falcao Colombian striker Falcao suspected of failing to correctly declare €7.4m of income earned from image rights between 2012 and 2013 while at Atletico Madrid. He has since paid €8.2m to Spanish tax authorities, a sum that includes interest on the original amount.
Jorge Mendes Portuguese super-agent put under official investigation last month by Spanish court investigating alleged tax evasion by Falcao, a client of his. He defended himself, telling closed-door hearing he "never" advised players in tax matters.
LAST-16 FIXTURES
Sunday, January 20
3pm: Jordan v Vietnam at Al Maktoum Stadium, Dubai
6pm: Thailand v China at Hazza bin Zayed Stadium, Al Ain
9pm: Iran v Oman at Mohamed bin Zayed Stadium, Abu Dhabi
Monday, January 21
3pm: Japan v Saudi Arabia at Sharjah Stadium
6pm: Australia v Uzbekistan at Khalifa bin Zayed Stadium, Al Ain
9pm: UAE v Kyrgyzstan at Zayed Sports City Stadium, Abu Dhabi
Tuesday, January 22
5pm: South Korea v Bahrain at Rashid Stadium, Dubai
8pm: Qatar v Iraq at Al Nahyan Stadium, Abu Dhabi
Learn more about Qasr Al Hosn
In 2013, The National's History Project went beyond the walls to see what life was like living in Abu Dhabi's fabled fort:
The White Lotus: Season three
Creator: Mike White
Starring: Walton Goggins, Jason Isaacs, Natasha Rothwell
Rating: 4.5/5
A MINECRAFT MOVIE
Director: Jared Hess
Starring: Jack Black, Jennifer Coolidge, Jason Momoa
Rating: 3/5
Get Out
Director: Jordan Peele
Stars: Daniel Kaluuya, Allison Williams, Catherine Keener, Bradley Whitford
Four stars
more from Janine di Giovanni
Company%20Profile
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THE SPECS
2020 Toyota Corolla Hybrid LE
Engine: 1.8 litre combined with 16-volt electric motors
Transmission: Automatic with manual shifting mode
Power: 121hp
Torque: 142Nm
Price: Dh95,900
Best Academy: Ajax and Benfica
Best Agent: Jorge Mendes
Best Club : Liverpool
Best Coach: Jurgen Klopp (Liverpool)
Best Goalkeeper: Alisson Becker
Best Men’s Player: Cristiano Ronaldo
Best Partnership of the Year Award by SportBusiness: Manchester City and SAP
Best Referee: Stephanie Frappart
Best Revelation Player: Joao Felix (Atletico Madrid and Portugal)
Best Sporting Director: Andrea Berta (Atletico Madrid)
Best Women's Player: Lucy Bronze
Best Young Arab Player: Achraf Hakimi
Kooora – Best Arab Club: Al Hilal (Saudi Arabia)
Kooora – Best Arab Player: Abderrazak Hamdallah (Al-Nassr FC, Saudi Arabia)
Player Career Award: Miralem Pjanic and Ryan Giggs
RESULTS
Men
1 Marius Kipserem (KEN) 2:04:04
2 Abraham Kiptum (KEN) 2:04:16
3 Dejene Debela Gonfra (ETH) 2:07:06
4 Thomas Rono (KEN) 2:07:12
5 Stanley Biwott (KEN) 2:09:18
Women
1 Ababel Yeshaneh (ETH) 2:20:16
2 Eunice Chumba (BRN) 2:20:54
3 Gelete Burka (ETH) 2:24:07
4 Chaltu Tafa (ETH) 2:25:09
5 Caroline Kilel (KEN) 2:29:14
Day 2, Abu Dhabi Test: At a glance
Moment of the day Dinesh Chandimal has inherited a challenging job, after being made Sri Lanka’s Test captain. He responded in perfect fashion, with an easy-natured century against Pakistan. He brought up three figures with a majestic cover drive, which he just stood and admired.
Stat of the day – 33 It took 33 balls for Dilruwan Perera to get off the mark. His time on zero was eventful enough. The Sri Lankan No 7 was given out LBW twice, but managed to have both decisions overturned on review. The TV replays showed both times that he had inside edged the ball onto his pad.
The verdict In the two previous times these two sides have met in Abu Dhabi, the Tests have been drawn. The docile nature of proceedings so far makes that the likely outcome again this time, but both sides will be harbouring thoughts that they can force their way into a winning position.
Test
Director: S Sashikanth
Cast: Nayanthara, Siddharth, Meera Jasmine, R Madhavan
Star rating: 2/5
Our family matters legal consultant
Name: Hassan Mohsen Elhais
Position: legal consultant with Al Rowaad Advocates and Legal Consultants.
