LETTER : The truth about HFCs

Share
Related Topics
Your article "Gas blow for self-cooling cans" (1 June) could give the wrong impression of the environmental impact of HFC 134a.

HFC 134a was developed as an alternative to CFCs as it does not deplete the ozone layer - without it, UK could not have met its responsibilities agreed under the Montreal Protocol on Substances that Deplete the Ozone Layer. It is also non-flammable, highly energy-efficient and non-toxic. Typically it is used in fridges, air-conditioning systems and in medical aerosols such as asthma inhalers.

While it is true that HFCs have a global warming potential, the Inter Governmental Panel on Climate Change (IPCC) predicts that they are unlikely to contribute more that 1-2 per cent to global warming by 2050. Compare this with the estimated contribution from carbon dioxide which is currently more than 60 per cent of man-made global warming. In the majority of applications, HFC134a is used in equipment where it can be safely contained during its use and recycled afterwards.

It is true that ICI declined to supply HFC 134a to the self-cooling drink cans. ICI has always maintained that HFCs should be used responsibly, in beneficial applications where their properties make them the safest and most acceptable replacement for CFCs. While self-chilling cans are a unique invention, they are inconsistent with this policy.

Richard Longden

ICI Klea, Runcorn, Cheshire

React Now

Latest stories from i100
Have you tried new the Independent Digital Edition apps?
SPONSORED FEATURES
iJobs Job Widget
iJobs General

Recruitment Genius: Telesales Executive - OTE £25,000

£13000 - £25000 per annum: Recruitment Genius: Would you like to be part of a ...

Recruitment Genius: 1st Line Technical Support Engineer

£19000 - £23000 per annum: Recruitment Genius: This IT and Telecoms company ar...

Recruitment Genius: Assistant Manager - Visitor Fundraising

£23000 per annum: Recruitment Genius: The Visitor Fundraising Team is responsi...

Recruitment Genius: Developer

£30000 - £35000 per annum: Recruitment Genius: This is an opportunity to join ...

Day In a Page

Read Next
An investor looks at an electronic board showing stock information at a brokerage house in Shanghai  

China has exposed the fatal flaws in our liberal economic order

Ann Pettifor
Jeremy Corbyn addresses over a thousand supporters at Middlesbrough Town Hall on August 18, 2015  

Thank God we have the right-wing press to tell us what a disaster Jeremy Corbyn as PM would be

Mark Steel
The Silk Roads that trace civilisation: Long before the West rose to power, Asian pathways were connecting peoples and places

The Silk Roads that trace civilisation

Long before the West rose to power, Asian pathways were connecting peoples and places
House of Lords: Outcry as donors, fixers and MPs caught up in expenses scandal are ennobled

The honours that shame Britain

Outcry as donors, fixers and MPs caught up in expenses scandal are ennobled
When it comes to street harassment, we need to talk about race

'When it comes to street harassment, we need to talk about race'

Why are black men living the stereotypes and why are we letting them get away with it?
International Tap Festival: Forget Fred Astaire and Ginger Rogers - this dancing is improvised, spontaneous and rhythmic

International Tap Festival comes to the UK

Forget Fred Astaire and Ginger Rogers - this dancing is improvised, spontaneous and rhythmic
War with Isis: Is Turkey's buffer zone in Syria a matter of self-defence – or just anti-Kurd?

Turkey's buffer zone in Syria: self-defence – or just anti-Kurd?

Ankara accused of exacerbating racial division by allowing Turkmen minority to cross the border
Doris Lessing: Acclaimed novelist was kept under MI5 observation for 18 years, newly released papers show

'A subversive brothel keeper and Communist'

Acclaimed novelist Doris Lessing was kept under MI5 observation for 18 years, newly released papers show
Big Blue Live: BBC's Springwatch offshoot swaps back gardens for California's Monterey Bay

BBC heads to the Californian coast

The Big Blue Live crew is preparing for the first of three episodes on Sunday night, filming from boats, planes and an aquarium studio
Austin Bidwell: The Victorian fraudster who shook the Bank of England with the most daring forgery the world had known

Victorian fraudster who shook the Bank of England

Conman Austin Bidwell. was a heartless cad who carried out the most daring forgery the world had known
Car hacking scandal: Security designed to stop thieves hot-wiring almost every modern motor has been cracked

Car hacking scandal

Security designed to stop thieves hot-wiring almost every modern motor has been cracked
10 best placemats

Take your seat: 10 best placemats

Protect your table and dine in style with a bold new accessory
Ashes 2015: Alastair Cook not the only one to be caught in The Oval mindwarp

Cook not the only one to be caught in The Oval mindwarp

Aussie skipper Michael Clarke was lured into believing that what we witnessed at Edgbaston and Trent Bridge would continue in London, says Kevin Garside
Can Rafael Benitez get the best out of Gareth Bale at Real Madrid?

Can Benitez get the best out of Bale?

Back at the club he watched as a boy, the pressure is on Benitez to find a winning blend from Real's multiple talents. As La Liga begins, Pete Jenson asks if it will be enough to stop Barcelona
Athletics World Championships 2015: Beijing witnesses new stage in the Jessica Ennis-Hill and Katarina Johnson-Thompson heptathlon rivalry

Beijing witnesses new stage in the Jess and Kat rivalry

The last time the two British heptathletes competed, Ennis-Hill was on the way to Olympic gold and Johnson-Thompson was just a promising teenager. But a lot has happened in the following three years
Jeremy Corbyn: Joining a shrewd operator desperate for power as he visits the North East

Jeremy Corbyn interview: A shrewd operator desperate for power

His radical anti-austerity agenda has caught the imagination of the left and politically disaffected and set a staid Labour leadership election alight
Isis executes Palmyra antiquities chief: Defender of ancient city's past was killed for protecting its future

Isis executes Palmyra antiquities chief

Robert Fisk on the defender of the ancient city's past who was killed for protecting its future