THE ozone layer is under attack again by the same disastrous chemicals that were outlawed more than 30 years ago.
And it has scientists baffled.
Chlorofluorocarbons, known as CFCs, once kept homes cool and our hair in place. They were used in everything, from hairspray, to refrigerators and airconditioners.
But in 1985, the chemical, which was nonflammable and harmless to humans, was found to be having catastrophic environmental consequences. It was destroying our shield from harmful ultraviolet (UV) radiation — the ozone layer.
This led to the signing of the 1987 Montreal Protocol, which banned global CFC production and in the years since, the world has given itself a pat on the back at news the hole is shrinking.
“The emerging emissions are coming from East Asia, and largely from China,” he said.
“It would represent a large increase in chemical activity in the Chinese economy, which is probably not unexpected.”