CFC What Happens
Levels of ozone-depleting CFCs are on the rise – despite a global ban
Joanna Cummings |
In 1987, the Montreal Protocol called for an end to the use of chlorofluorocarbons (CFCs), including trichlorofluoromethane (CFC-11) – the second most ozone-depleting gas. With decreasing emissions, concentrations of CFC-11 were expected to fall rapidly from 2010 onwards.
However, scientists have discovered evidence of increased emissions after 2013; in fact, they were 25 percent higher between 2014 and 2016 than between 2002 and 2012. Stephen Montzka, a Research Chemist at the US National Oceanic and Atmospheric Administration and co-author of the paper (1), says: “It was and is the most unexpected observation I’ve made during my 27 years of making global-scale measurements. How can emissions of CFC-11 have increased, a decade after its production had been phased out for more than 10 years?”
Read the full article now
Log in or register to read this article in full and gain access to The Analytical Scientist’s entire content archive. It’s FREE and always will be!
Or register now - it’s free and always will be!
You will benefit from:
- Unlimited access to ALL articles
- News, interviews & opinions from leading industry experts
- Receive print (and PDF) copies of The Analytical Scientist magazine
Or Login via Social Media
By clicking on any of the above social media links, you are agreeing to our Privacy Notice.