12 October 2017, BBC News, Ozone layer recovery could be delayed by 30 years. Rising global emissions of some chlorine-containing chemicals could slow the progress made in healing the ozone layer.A study found the substances, widely used for paint stripping and in the manufacture of PVC, are increasing much faster than previously thought. Mainly produced in China, these compounds are not currently regulated. Experts say their continued use could set back the closing of the ozone hole by up to 30 years. Scientists reported last year that they had detected the first clear evidence that the thinning of the protective ozone layer was diminishing. The Montreal Protocol, which was signed 30 years ago, was the key to this progress. It has progressively helped governments phase out the chlorofluorocarbons and the hydrochlorofluorocarbons that were causing the problem. However, concern has been growing over the past few years about a number of chemicals, dubbed “very short-lived substances”. Antarctic ozone hole starts to ‘heal’ How Arctic ozone hole was avoided Weather ‘behind ozone hole changes’ Dichloromethane is one of these chemicals, and is used as an industrial solvent and a paint remover. Levels in the atmosphere have increased by 60% over the past decade. Read More here
Tag Archives: United Nations
12 October 2017, WIRED, The Dirty Secret of the World’s Plan to Avert Climate Disaster. IN 2014 HENRIK Karlsson, a Swedish entrepreneur whose startup was failing, was lying in bed with a bankruptcy notice when the BBC called. The reporter had a scoop: On the eve of releasing a major report, the United Nation’s climate change panel appeared to be touting an untried technology as key to keeping planetary temperatures at safe levels. The technology went by the inelegant acronym BECCS (Bio-Energy with Carbon Capture and Storage), and Karlsson was apparently the only BECCS expert the reporter could find. Karlsson was amazed. The bankruptcy notice was for his BECCS startup, which he’d founded seven years earlier after an idea came to him while watching a late-night television show in Gothenburg, Sweden. The show explored the benefits of capturing carbon dioxide before it was emitted from power plants. It’s the technology behind the much-touted notion of “clean coal,” a way to reduce greenhouse gas emissions and slow down climate change…..But here’s where things get weird. The UN report envisions 116 scenarios in which global temperatures are prevented from rising more than 2°C. In 101 of them, that goal is accomplished by sucking massive amounts of carbon dioxide from the atmosphere—a concept called “negative emissions”—chiefly via BECCS. And in these scenarios to prevent planetary disaster, this would need to happen by midcentury, or even as soon as 2020. Like a pharmaceutical warning label, one footnote warned that such “methods may carry side effects and long-term consequences on a global scale.” …… Still, negative emissions are not mentioned in the Paris Climate Agreement or a part of formal international climate negotiations. As Peters and Geden recently pointed out, no country mentions BECCS in its official plan to cut emissions in line with Paris’s 2°C goal, and only a dozen mention carbon capture and storage. Politicians are decidedly not crafting elaborate BECCS plans, with supply chains spanning continents and carbon accounting spanning decades. So even if negative emissions of any kind turns out to be feasible technically and economically, it’s hard to see how we can achieve it on a global scale in a scant 13 or even three years, as some scenarios require. Read More here
10 July 2017, The Conversation, As an historic nuclear weapons treaty is reached, G20 leaders miss the mark on North Korea. Over the weekend, more than 120 countries adopted a treaty at a UN conference that prohibits the production, stockpiling, use or threatened use of nuclear weapons or other nuclear explosive devices. Australia was a notable absentee. So were the nine countries that possess nuclear weapons. While the UN conference was taking a major step toward the elimination of nuclear weapons, the US and its allies – notably Japan, South Korea and Australia – were hoping to use the G20 summit in Hamburg to focus attention on the danger North Korea’s nuclear ambitions pose. However, the declaration issued at the end of the G20 does not even mention the issue. We can now expect a UN Security Council resolution that condemns North Korea’s latest missile test and applies slightly tougher sanctions. The glaring contradiction between the boycott of the nuclear ban negotiations and the preoccupation with the North Korean nuclear threat does not seem to have dawned on the US and its allies….Why the treaty? Nothing said at the G20 summit will resolve the North Korean crisis, for it is but a symptom of a deeper ailment. The US and Russia, which between them account for 92% of the world’s nuclear weapons, are clearly intent on preserving and modernising their nuclear arsenals. They and other nuclear-armed countries have steadfastly resisted repeated calls for nuclear disarmament – even though Article 6 of the Nuclear Non-Proliferation Treaty requires them to do just that. The nuclear weapons treaty that has just emerged is a direct response to the morally and legally culpable inaction of the nuclear-armed countries – something the G20 summit did not and could not do. Put simply, the treaty is a comprehensive effort to bring the rule of law to bear on all aspects of the nuclear assault on the planet. It designates a nuclear-weapon-free world as “a global public good of the highest order”, on which depend: … human survival, the environment, socioeconomic development, the global economy, food security and the health of current and future generations. The treaty’s provisions are robust and thorough. In addition to prohibiting production, possession and deployment, each party to it undertakes never to test, transfer or receive from any recipient any nuclear weapons or explosive devices, and never to assist anyone or receive assistance from anyone to engage in any such activity. Read More here
6 July 2017, Climate Home, The tax-free shipping company that took control of a country’s UN mission. How the tiny, climate-threatened Marshall Islands came to be represented at UN shipping talks by a private company based in Virginia, 11,000 km away. In 2015 Tony de Brum, then foreign minister of the Marshall Islands, came to the International Maritime Organisation (IMO) in London to deliver a simple message: international shipping must decarbonise or be responsible for destroying his country. International shipping could be responsible for nearly a fifth of the world’s carbon emissions by 2050. If the IMO, the branch of the UN that regulates international shipping, failed to set ambitious climate targets, it would be disastrous for low-lying islands like his own, de Brum would say. But when he walked in to the IMO plenary, de Brum found strangers sitting in his country’s place. “I was talking about a Goldilocks situation,” he told Climate Home two years later on the verandah of his bungalow on the Marshallese capital atoll Majuro, a few feet from the lagoon. “We had some difficulty convincing the people who were sitting in our seats, literally, that we were the representatives of the Marshall Islands.” The people de Brum found representing the Marshall Islands were from International Registries Inc. (IRI), a private shipping register headquartered in Reston, Virginia. According to its website, the company provides access to the Marshall Islands flag and a “zero tax jurisdiction that statutorily exempts non-resident domestic corporations from taxation on their income and assets”. Thanks to IRI, the Marshall Islands boasts the second largest fleet of ships in the world and the world’s largest fleet of oil tankers. The company attracts ship owners with the promise of zero corporation tax and no seafarer nationality requirements – the latter allows them to skirt organised labour. The 45,000 offshore companies registered with IRI also benefit from corporate anonymity. De Brum, now climate change ambassador for the Marshall Islands, said he was “appalled” by IRI’s suspicious response to his arrival at the IMO. He did eventually deliver his message. But two years on, the shipping industry remains out of step with the rest of the world on climate change. In 20 years, the IMO has made just one intervention to address carbon emissions: an efficiency index which the International Energy Agency said would only improve efficiency by 1% between 2015 and 2025. A new study by CE Delft found the efficiency of new ships actually got worse in 2016. Read More here