Saving ozone is hastening climate change: UN study
Global effort to reduce emission impact on ozone layer in atmosphere is causing faster climate change, a United Nations report had found.delhi Updated: Sep 17, 2010 01:49 IST
Global effort to reduce emission impact on ozone layer in atmosphere is causing faster climate change, a United Nations report had found.
The report released on World Ozone Day said emissions of powerful greenhouse gases such as HCFCs (hydrochlorofluorocarbons) and HFCs (hydrofluorocarbons) has increased.
HCFC is a replacement for ozone depleting gas CFCs (cholorofluorocarbons) and HFC is a by-product of HFCFs production. A tonne of HFC emitted is equal to 14,000 tonnes of carbon dioxide.
The United Nations Environment Programme (UNEP), a report to be released in 2011, had said that total emissions of HCFC are currently faster than four years ago. “The use of HCFC-22, increased more than 50 per cent faster in 2007-2008 than in 2003-2004,” it said.
Developing nations such as India and China got financial incentives to replace CFCs, used in refrigerators, with HCFCs under the Montreal Protocol, signed by 196 nations to reduce ozone depleting substances.
While the entire world, including India, has phased out CFCs, its replacement with HCFCs has caused a climate change problem. The HCFCs are to be phased out by 2030 under the Montreal Protocol whereas HFCs emission is to be reduced under the Kyoto Protocol. “We are heading to achieve the new target under the Montreal Protocol,” Environment Minister Jairam Ramesh said on Thursday.
What has worried experts is that the emissions of HFCs was rising eight per cent a year even though incentives have been provided to the developing countries to reduce them.
“This represents a further potential area for action within the overall climate change challenge,” said Achim Steiner, UNEP Executive Director.