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
Category Archives: PLEA Network
11 October 2017, Carbon Briefing, Geoengineering: Scientists in Berlin debate radical ways to reverse global warming. Research scientists, policymakers and ethicists gathered in Berlin this week to discuss the emerging field of “climate engineering” and what it could mean for the planet. Climate engineering, also known as geoengineering, is a term used to describe an array of technologies – many of which remain hypothetical – for altering the global climate in order to lessen the effects of climate change. The four-day conference has been organised by the Institute for Advanced Sustainability Studies (IASS) in Potsdam, Germany, and includes speakers and participants from across the world, including Japan, Jamaica, the US and India. Tuesday Tuesday’s proceedings kicked off with talks aimed at bringing the audience up to speed with the latest research into the two main categories of geoengineering technologies: carbon dioxide removal (CDR) and solar radiation management (SRM). First up was Dr Naomi Vaughan, a researcher from the Tyndall Centre for Climate Change Research at the University of East Anglia. Her talk touched on recent research into a variety of CDR technologies, including biomass energy carbon capture and storage (BECCS), soil carbon sequestration and reforestation projects, and how important these techniques could be to meeting the goals of the Paris Agreement. She told the conference: Read More here
10 October 2017, The Conversation Government’s energy plan still under wraps while Abbott shouts his from afar. Speaking in a light and bright FM radio interview on Tuesday, Malcolm Turnbull said that in politics, “just being chilled, calm is very important. A little bit of zen goes a long way.” He was answering a question about himself. But those with a stake in energy policy might be feeling a rather desperate need to dip into their own zen reserves right now. The government hates the suggestion its policy process looks chaotic, and insists there is “a plan”. “The good news is that we have learned the lessons of the past, we know where we are going and we have a comprehensive plan to get there,” Energy Minister Josh Frydenberg told The Australian Financial Review’s energy summit. But what the core feature of the plan is has yet to be revealed, and this week has added to the public confusion. The AFR’s two-day forum, which seemed to have everyone who is anyone in the field, provided a stage for the latest episode in the policy saga. Frydenberg’s Monday speech was widely seen as the government walking away from the clean energy target proposed by Chief Scientist Alan Finkel. The justification was the falling price of renewables, obviating the need for future subsidies. No surprise perhaps, because despite some initial enthusiasm from Turnbull and Frydenberg, the crab-walk back, under the pressure of the naysayers in Coalition ranks, had been apparent for some time. But here it was happening with Finkel himself in the room, as one of the conference speakers. Read More here
9 October 2017, The Conversation, After the storm: how political attacks on renewables elevates attention paid to climate change. This time last year, Australia was getting over a media storm about renewables, energy policy and climate change. The media storm was caused by a physical storm: a mid-latitude cyclone that hit South Australia on September 29 and set in train a series of events that is still playing itself out. The events include:
- an extraordinary attack on renewables by federal government ministers; a steadfast pushback by the South Australian government to continue its renewables roll-out; the offer of tech entrepreneur Elon Musk to build the largest battery storage facility in the world in South Australia and; the Finkel Review.
In one sense, the Finkel Review was a response to the government’s concerns about “energy security”. But it also managed to successfully respond to the way energy policy had become a political plaything, as exemplified by the attacks on South Australia. New research on the media coverage that framed the energy debate that has ensued over the past year reveals some interesting turning points in how Australia’s media report on climate change. Read More here