A formidable space tourism industry may have a greater climate effect than the aviation industry and undo the recovery of the protective ozone layer if left unregulated, a joint US-UK study published on Saturday suggested.
Researchers from University College London (UCL), the University of Cambridge and Massachusetts Institute of Technology (MIT) used a 3D model to explore the impact of rocket launches and re-entry in 2019 and the effects of projected space tourism scenarios based on the recent billionaire-led space race.
The team found that black carbon (soot) particles emitted by rockets are almost 500 times more efficient at holding heat in the atmosphere than all other sources of soot combined — resulting in an enhanced climate effect.
Furthermore, while the study revealed that the current loss of total ozone due to rockets is small, current growth trends around space tourism indicate potential for future depletion of the upper stratospheric ozone layer in the Arctic in spring.
This is because pollutants from solid-fuel rockets and re-entry heated by returning spacecraft and debris are particularly harmful to stratospheric ozone.
Call for space tourism regulation
“Rocket launches are routinely compared to greenhouse gas and air pollutant emissions from the aircraft industry, which we demonstrate in our work is erroneous,” said study co-author Eloise Marais of UCL.
“Soot particles from rocket launches have a much larger climate effect than aircraft and other Earth-bound sources, so there doesn’t need to be as many rocket launches as international flights to have a similar impact.
“What we really need now is a discussion amongst experts on the best strategy for regulating this rapidly growing industry.”
To calculate the findings, the researchers collected information on the chemicals from all 103 rocket launches in 2019 from around the world as well as data on reusable rocket and space junk re-entry.
They also used recent demonstrations by space tourism firms Virgin Galactic, Blue Origin and SpaceX and proposed yearly offerings of at least daily launches by Virgin Galactic to construct a scenario of a future formidable space tourism industry.
Virgin Galactic space launch — in pictures
These data were then incorporated into a 3D atmospheric chemistry model to explore the impact on climate and the ozone layer.
The team show that warming due to soot is 3.9 mW m-2 from a decade of contemporary rockets, dominated by emissions from kerosene-fuelled rockets.
However, this more than doubles after only three years of additional emissions from space tourism launches, due to the use of kerosene by SpaceX and hybrid synthetic rubber fuels by Virgin Galactic.
The researchers say this is of particular concern as, when the soot particles are directly injected into the upper atmosphere, they have a much greater effect on climate than other soot sources — with the particles 500 times more efficient at retaining heat.
The team found that, under a scenario of daily or weekly space tourism rocket launches, the impact on the stratospheric ozone layer threatens to undermine the recovery initiated by the implementation of the Montreal Protocol.
Adopted in 1987, the protocol banned substances that deplete the ozone layer and is considered one of the most successful international environmental policy interventions.
“The only part of the atmosphere showing strong ozone recovery post-Montreal Protocol is the upper stratosphere and that is exactly where the impact of rocket emissions will hit hardest,” said study lead author Robert Ryan of UCL.
He said researchers had not been expecting to see ozone changes of that magnitude.
“There is still a lot we need to find out about the influence of rocket launch and re-entry emissions on the atmosphere — in particular, the future size of the industry and the types and by-products of new fuels like liquid methane and bio-derived fuels,” he added.
“This study allows us to enter the new era of space tourism with our eyes wide open to the potential impacts. The conversation about regulating the environmental impact of the space launch industry needs to start now so we can minimise harm to the stratospheric ozone layer and climate.”
Founders: Abdulmajeed Alsukhan, Turki Bin Zarah and Abdulmohsen Albabtain.
Based: Riyadh
Offices: UAE, Vietnam and Germany
Founded: September, 2020
Number of employees: 70
Sector: FinTech, online payment solutions
Funding to date: $116m in two funding rounds
Investors: Checkout.com, Impact46, Vision Ventures, Wealth Well, Seedra, Khwarizmi, Hala Ventures, Nama Ventures and family offices
WHAT IS A BLACK HOLE?
1. Black holes are objects whose gravity is so strong not even light can escape their pull
2. They can be created when massive stars collapse under their own weight
3. Large black holes can also be formed when smaller ones collide and merge
4. The biggest black holes lurk at the centre of many galaxies, including our own
5. Astronomers believe that when the universe was very young, black holes affected how galaxies formed
First Person
Richard Flanagan
Chatto & Windus
Islamophobia definition
A widely accepted definition was made by the All Party Parliamentary Group on British Muslims in 2019: “Islamophobia is rooted in racism and is a type of racism that targets expressions of Muslimness or perceived Muslimness.” It further defines it as “inciting hatred or violence against Muslims”.
Results
6pm: Dubai Trophy – Conditions (TB) $100,000 (Turf) 1,200m
Winner: Silent Speech, William Buick (jockey), Charlie Appleby
(trainer)
6.35pm: Jumeirah Derby Trial – Conditions (TB) $60,000 (T)
1,800m
Winner: Island Falcon, Frankie Dettori, Saeed bin Suroor
7.10pm: UAE 2000 Guineas Trial – Conditions (TB) $60,000 (Dirt)
1,400m
Winner: Rawy, Mickael Barzalona, Salem bin Ghadayer
7.45pm: Al Rashidiya – Group 2 (TB) $180,000 (T) 1,800m
Winner: Desert Fire, Hector Crouch, Saeed bin Suroor
8.20pm: Al Fahidi Fort – Group 2 (TB) $180,000 (T) 1,400m
Winner: Naval Crown, William Buick, Charlie Appleby
8.55pm: Dubawi Stakes – Group 3 (TB) $150,000 (D) 1,200m
Winner: Al Tariq, Pat Dobbs, Doug Watsons
9.30pm: Aliyah – Rated Conditions (TB) $80,000 (D) 2,000m
Winner: Dubai Icon, Patrick Cosgrave, Saeed bin Suroor
Scores in brief:
- New Medical Centre 129-5 in 17 overs bt Zayed Cricket Academy 125-6 in 20 overs.
- William Hare Abu Dhabi Gymkhana 188-8 in 20 overs bt One Stop Tourism 184-8 in 20 overs
- Alubond Tigers 138-7 in 20 overs bt United Bank Limited 132-7 in 20 overs
- Multiplex 142-6 in 17 overs bt Xconcepts Automobili 140 all out in 20 overs
Dunki
%3Cp%3E%3Cstrong%3EDirector%3A%3C%2Fstrong%3E%20Rajkumar%20Hirani%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStarring%3A%3C%2Fstrong%3E%20Shah%20Rukh%20Khan%2C%20Taapsee%20Pannu%2C%20Vikram%20Kochhar%20and%20Anil%20Grover%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%204%2F5%3C%2Fp%3E%0A
White hydrogen: Naturally occurring hydrogen
Chromite: Hard, metallic mineral containing iron oxide and chromium oxide
Ultramafic rocks: Dark-coloured rocks rich in magnesium or iron with very low silica content
Ophiolite: A section of the earth’s crust, which is oceanic in nature that has since been uplifted and exposed on land
Olivine: A commonly occurring magnesium iron silicate mineral that derives its name for its olive-green yellow-green colour
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%3Cp%3E%0DFashion%20director%3A%20Sarah%20Maisey%0D%3Cbr%3EPhotographer%3A%20Greg%20Adamski%0D%3Cbr%3EHair%20and%20make-up%3A%20Ania%20Poniatowska%0D%3Cbr%3EModels%3A%20Nyajouk%20and%20Kristine%20at%20MMG%2C%20and%20Mitchell%0D%3Cbr%3EStylist%E2%80%99s%20assistants%3A%20Nihala%20Naval%20and%20Sneha%20Maria%20Siby%0D%3Cbr%3EVideographer%3A%20Nilanjana%20Gupta%3C%2Fp%3E%0A
EA Sports FC 26
Publisher: EA Sports
Consoles: PC, PlayStation 4/5, Xbox Series X/S
Rating: 3/5
A list of the animal rescue organisations in the UAE
How to apply for a drone permit
- Individuals must register on UAE Drone app or website using their UAE Pass
- Add all their personal details, including name, nationality, passport number, Emiratis ID, email and phone number
- Upload the training certificate from a centre accredited by the GCAA
- Submit their request
What are the regulations?
- Fly it within visual line of sight
- Never over populated areas
- Ensure maximum flying height of 400 feet (122 metres) above ground level is not crossed
- Users must avoid flying over restricted areas listed on the UAE Drone app
- Only fly the drone during the day, and never at night
- Should have a live feed of the drone flight
- Drones must weigh 5 kg or less
UAE currency: the story behind the money in your pockets
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
The bio:
Favourite film:
Declan: It was The Commitments but now it’s Bohemian Rhapsody.
Heidi: The Long Kiss Goodnight.
Favourite holiday destination:
Declan: Las Vegas but I also love getting home to Ireland and seeing everyone back home.
Heidi: Australia but my dream destination would be to go to Cuba.
Favourite pastime:
Declan: I love brunching and socializing. Just basically having the craic.
Heidi: Paddleboarding and swimming.
Personal motto:
Declan: Take chances.
Heidi: Live, love, laugh and have no regrets.
Silent Hill f
Publisher: Konami
Platforms: PlayStation 5, Xbox Series X/S, PC
Rating: 4.5/5
New UK refugee system
- A new “core protection” for refugees moving from permanent to a more basic, temporary protection
- Shortened leave to remain - refugees will receive 30 months instead of five years
- A longer path to settlement with no indefinite settled status until a refugee has spent 20 years in Britain
- To encourage refugees to integrate the government will encourage them to out of the core protection route wherever possible.
- Under core protection there will be no automatic right to family reunion
- Refugees will have a reduced right to public funds
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%3Cp%3E%3Cstrong%3EDirector%3A%C2%A0%3C%2Fstrong%3EKelsey%20Mann%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStarring%3A%3C%2Fstrong%3E%C2%A0Amy%20Poehler%2C%20Maya%20Hawke%2C%20Ayo%20Edebiri%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%20%3C%2Fstrong%3E4.5%2F5%3C%2Fp%3E%0A
The specs
Engine: 3.9-litre twin-turbo V8
Power: 620hp from 5,750-7,500rpm
Torque: 760Nm from 3,000-5,750rpm
Transmission: Eight-speed dual-clutch auto
On sale: Now
Price: From Dh1.05 million ($286,000)
Ukraine
Capital: Kiev
Population: 44.13 million
Armed conflict in Donbass
Russia-backed fighters control territory
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
WHAT%20MACRO%20FACTORS%20ARE%20IMPACTING%20META%20TECH%20MARKETS%3F
%3Cp%3E%E2%80%A2%20Looming%20global%20slowdown%20and%20recession%20in%20key%20economies%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Russia-Ukraine%20war%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Interest%20rate%20hikes%20and%20the%20rising%20cost%20of%20debt%20servicing%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Oil%20price%20volatility%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Persisting%20inflationary%20pressures%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Exchange%20rate%20fluctuations%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Shortage%20of%20labour%2Fskills%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20A%20resurgence%20of%20Covid%3F%3C%2Fp%3E%0A
RESULTS
2pm: Handicap (PA) Dh40,000 (Dirt) 1,000m
Winner: AF Mozhell, Saif Al Balushi (jockey), Khalifa Al Neyadi (trainer)
2.30pm: Maiden (PA) Dh40,000 (D) 2,000m
Winner: Majdi, Szczepan Mazur, Abdallah Al Hammadi.
3pm: Handicap (PA) Dh40,000 (D) 1,700m
Winner: AF Athabeh, Tadhg O’Shea, Ernst Oertel.
3.30pm: Handicap (PA) Dh40,000 (D) 1,700m
Winner: AF Eshaar, Bernardo Pinheiro, Khalifa Al Neyadi
4pm: Gulf Cup presented by Longines Prestige (PA) Dh150,000 (D) 1,700m
Winner: Al Roba’a Al Khali, Al Moatasem Al Balushi, Younis Al Kalbani
4.30pm: Handicap (TB) Dh40,000 (D) 1,200m
Winner: Apolo Kid, Antonio Fresu, Musabah Al Muahiri
UAE currency: the story behind the money in your pockets
