|all articles latest | past | articles by topics | search wildnews|
wild news on wildsingapore
News 15 Sep
Global climate change, ozone layer are tied: UN official
PlanetArk 17 Sep 07
Could Kyoto Protocol Use a Touch of Montreal?
Story by Deborah Zabarenko, Environment Correspondent
WASHINGTON - Could the solution to global warming be as simple as a switch of cities?
For those who think the Kyoto Protocol is not working to cut greenhouse gas emissions that are heating the planet, why not take some lessons from the Montreal Protocol, praised as the world's most successful climate treaty?
Both the United Nations and the Bush administration plan to try out this idea this week as parties to the treaty gather in Montreal, 20 years after the pact to cut ozone-depleting chemicals was signed.
Sunday, the anniversary of the signing, has been dubbed International Ozone Day. The Montreal Protocol aims to cut down on emissions of chemicals that deplete the stratospheric ozone layer, which shields Earth from ultraviolet solar radiation that can cause skin cancer and other ailments.
The ozone layer is still thin in spots, especially over the South Pole, but the treaty is considered a raging success because it mapped a way to cut production of ozone-depleting substances.
So far, 191 countries from the developed and developing world have signed this pact, and have phased out more than 95 percent of ozone-depleting substances.
Because some chemicals that eat stratospheric ozone also contribute to global warming, the United Nations Environment Program and the White House plan to urge speeding up some requirements of the Montreal Protocol.
They argue that this would have a bigger impact on climate change than the Kyoto Protocol, signed in Japan in 1997.
"We will push for an agreement among the parties to accelerate the phase-out of hydrochlorofluorocarbons (HCFCs), chemicals that not only destroy the ozone layer, but contribute significantly to climate change," the US State Department said in a statement before the meeting.
James Connaughton, head of the White House Council on Environmental Quality, said Washington wants HCFCs -- used in refrigerators and air conditioners -- phased out 10 years earlier than under the current timetable.
OZONE-EATERS AND CARBON DIOXIDE
"It would produce at least two times the reductions (in greenhouse gases) than the Kyoto Protocol," Connaughton said in a Reuters interview in Brussels.
The United States is not part of the Kyoto Protocol, arguing that it would cost US jobs and wrongly excludes developing nations like China and India from goals to cut their greenhouse gas emissions, including carbon dioxide spewed by coal-fired power plants and petroleum-fueled vehicles.
But using the Montreal Protocol to fight global warming is "simplistic," said one Washington-based environmental expert who deals with the US government.
Climate change is a more complex problem than ozone depletion, this consultant said, requesting anonymity.
And the big problem with climate change remains carbon dioxide emissions, not ozone-depleting chemicals, the consultant said.
All the industries covered by the Montreal Protocol account for perhaps 5 percent of total global warming emissions, the consultant said, while carbon dioxide from energy production and mobile sources accounts for 75 percent.
Annie Petsonk of Environmental Defense noted a fundamental difference between the Montreal and Kyoto treaties: in the ozone pact, all countries are compelled to cut back on the amount of ozone-eating substances they produce, but developing countries have a 10-year grace period and get financial incentives to do it.
Under the Kyoto Protocol, developing countries are exempt from limiting emissions from greenhouse gases, Petsonk said in a telephone interview.
Drusilla Hufford, director of stratospheric protection at the US Environmental Protection Agency, said some part of the Montreal Protocol's success was its genesis: based on science and flexible in the way its goals could be met.
It also had the support of the US administration, which is not the case with the Kyoto agreement on climate change.
"In Kyoto, the United States isn't even at the table," the environmental consultant said. "We're the technology leader, the biggest emitter, we set an example for other countries ... and we're not setting an example."
Yahoo News 15 Sep 07
Global climate change, ozone layer are tied: UN official
A meeting of signatories to the Montreal Protocol could make a "historic gesture" by working simultaneously to restore the ozone layer and halt global warming, a UN official said in an interview published Saturday.
Achim Steiner, executive director of the UN program for the environment, told the daily Le Devoir the fight against global climate change and the fight to restore the ozone layer are linked.
The interview appeared ahead of a conference marking Sunday's 20th anniversary of signing of the Montreal Protocol, an international treaty seeking to end production of chemical compounds that contribute to ozone depletion.
"With the anniversary coming up, the enormous challenge has still not been met, and it offers the international community the chance to make rapid gains both concerning the ozone layer and global climate change," Steiner told the Montreal daily.
Haloalkane (HCFC) and Chlorofluorocarbon (CFC) chemical compounds, once widely used as refrigerants and propellants in aerosol cans, have been largely curtailed by multilateral agreements in the Protocol.
CFC emissions opened a large hole in the ozone layer in the Earth's upper atmosphere, allowing more of the sun's harmful ultra-violet radiation to enter and raising the specter of increased cases of skin-cancer and eye cataracts.
If production of CFCs are halted and eliminated over the next 10 years the effect of global warming could be cut by 4.5 percent, Steiner said.
Related articles on Climate change
|News articles are reproduced for non-profit educational purposes.|
website©ria tan 2003 www.wildsingapore.com