Mystery of banned CFCs resurgence may be solved

June 26, 2018 by  
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The world recently learned that chlorofluorocarbons ( CFCs ), an ozone-damaging industrial gas banned under the 1997 Montreal Protocol, have made an unexpected comeback, with significant emissions detected in the atmosphere. The source of these banned gases has remained unclear. Now, documents and research gathered by the New York Times and independent investigators suggest that the CFCs, specifically CFC-11, may be coming from factories in China that manufacture foam for buildings and appliances. “You had a choice: Choose the cheaper foam agent that’s not so good for the environment, or the expensive one that’s better for the environment,” factory owner Zhang Wenbo told the New York Times . “Of course, we chose the cheaper foam agent. That’s how we survived.” At the time of Zhang’s interview, local authorities were conducting inspections throughout town and citing those who violated regulations. When they arrived at his factory, they assessed that it was in violation of environmental codes and ordered it shut down. “They never told us until last year that it was damaging the atmosphere ,” Zhang said. “Nobody came to check what we were using, so we thought it was O.K.” Although some provinces in China have tightened enforcement of the CFC ban, the chemical still remains available online. “When nobody is watching, they can make some, or when they get an order — an underground order — they can also produce it,” local refrigeration expert Liu Le told the New York Times . “They produce for a while until they’re discovered, and then move on.” Related: Antarctic ozone layer shows “first fingerprints of healing” The U.S.-based Environmental Investigation Agency has determined that at least eight factories in four provinces are still using CFCs to create foam. “The scale of this environmental crime is devastating, with massive potential impact on the climate and the ozone layer,” executive director Alexander von Bismarck said. “We’re hoping for a strong response from a strong environmental agreement.” While the mystery is becoming more clear, there is much more that needs to be done to determine the full extent of the problem. Head of the United Nations Environment Program Erik Solheim said, “Based on the scale of detected emissions there is good reason to believe the problem extends beyond these uncovered cases.” Via New York Times Image via Depositphotos

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Mystery of banned CFCs resurgence may be solved

Levels of ozone-destroying CFCs are mysteriously rising

May 17, 2018 by  
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Globally banned by the Montreal protocol in 1987 for their ozone-destroying properties, chlorofluorocarbon (CFC) chemicals are experiencing a comeback. In recent years, levels of CFCs have increased suddenly and mysteriously. Now, scientists are racing to determine the source of the problem. U.S. National Oceanic and Atmospheric Administration (NOAA) researcher Stephen Montzka discovered this unusual trend. “I have been doing this for 27 years and this is the most surprising thing I’ve ever seen,” he told the Guardian . “I was just shocked by it. We are acting as detectives of the atmosphere, trying to understand what is happening and why.” There is global concern that this unexplained CFC revival could do serious environmental damage. “If these emissions continue unabated, they have the potential to slow down the recovery of the ozone layer,” head of UN Environment Erik Solheim told the Guardian . “It’s therefore critical that we identify the precise causes of these emissions and take the necessary action.” After investigating several explanations, researchers now suggest that the new CFC production is taking place somewhere in East Asia . Related: Antarctic ozone layer shows “first fingerprints of healing” The second most damaging CFC chemical , CFC-11, has most notably been on the rise. It is possible that the investigation will lead to a shutdown of the CFC production even before the exact source is determined. “I have a feeling that we will find out fairly quickly what exactly is going on and that the situation will be remedied,” Montzka said. “Somebody who was maybe doing it purposefully will realize — oh, someone is paying attention — and stop doing it.” + National Oceanic and Atmospheric Administration Via The Guardian Images via Depositphotos (1, 2)

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Levels of ozone-destroying CFCs are mysteriously rising

Scientists Discover Four New Ozone-Damaging Chemicals in the Atmosphere

March 10, 2014 by  
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Since the famous Montreal Protocol banning CFC’s and HCFC’s was signed in 1987, the public seems to have largely forgotten about the hole in the ozone layer over Antarctica. However scientists from the University of East Anglia just identified four more ozone-damaging chemicals, and these compounds are also potent greenhouse gasses . Read the rest of Scientists Discover Four New Ozone-Damaging Chemicals in the Atmosphere Permalink | Add to del.icio.us | digg Post tags: antarctica , CFC , cfc113a , dr johannes laube , Europe , greenhouse gas , greenland , hcfc , montreal protocol , ozone hole , ozone layer , tasmania , university of east anglia        

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Scientists Discover Four New Ozone-Damaging Chemicals in the Atmosphere

Heatherwick’s Timber Studios are Split Down the Middle and Covered in Thin Steel

June 15, 2012 by  
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Read the rest of Heatherwick’s Timber Studios are Split Down the Middle and Covered in Thin Steel Permalink | Add to del.icio.us | digg Post tags: Aberystwyth Arts Center , CFC , cladding , Creative Business Studios , Daylighting , eco design , green design , insulation , natural ventilation , startups , sustainable design , thomas heatherwick , Wales

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Heatherwick’s Timber Studios are Split Down the Middle and Covered in Thin Steel

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