9 December 2015, Washington Post, How the Earth itself could undermine a Paris climate agreement. PARIS — With only three days left, tensions here are rising as countries race to resolve outstanding differences and forge an agreement that — hopefully — will set the planet on a path to avoiding the worst consequences of climate change. The goal is an agreement that would set the world on a path to limit warming to below 2 degrees Celsius, or perhaps even 1.5 degrees Celsius, above pre-industrial levels. But at a news conference here at the Le Bourget conference center Wednesday morning, scientists pointed out a factor that could make hitting these targets quite a lot harder. It’s called permafrost. As the planet warms, this frozen northern soil is going to continue to thaw — and as it thaws, it’s going to release carbon dioxide and methane into the air. A lot of it, it turns out. Potentially enough to really throw off the carbon budgets that have been calculated in order to determine the maximum emissions that we can release and still have a good chance of keeping warming to 2 C or below it. In particular, Susan Natali of the Woods Hole Research Center explained Wednesday that with a very high level of warming, permafrost emissions this century could be quite large indeed. Natali used numbers from the 2013 report of the United Nations’ Intergovernmental Panel on Climate Change, which found that humans can only emit about 275 more gigatons, or billion tons, of carbon (about 1,000 gigatons of carbon dioxide, which has a greater molecular weight) to have a greater than 66 percent chance of limiting warming to 2 degrees C. But out of that limited budget, she said, permafrost emissions could take up some 150 of those gigatons (or about 550 gigatons of carbon dioxide). Read More here
hmcadmin
9 December 2015, Energy Post, New: renewables can now play important role in industrial development. Thanks to massive cost reduction, renewable energy can now be used by developing countries in their industrial growth strategies, which was unthinkable until recently, writes John Mathews of Macquarie University in Australia in a new publication from UNIDO, “Promoting Climate Resilient Industry“. Mathews notes that renewables can help countries expand manufacturing and create jobs, reduce local pollution, increase energy security and reduce import costs from fossil fuels. Oh, yes – and they reduce greenhouse gas emissions. The necessity to align industrial development strategies with climate change mitigation provides a chance to bring a fresh perspective to both issues. Energy has not been a central concern in industrial development strategies in the past. This was for the simple reason that it was always assumed that countries would industrialize using fossil fuels – in the same way that Western countries had relied on fossil fuels in the 19th and early 20th centuries, followed by East Asian countries as they likewise depended on coal, oil and gas in the second half of the 20th century. Renewable sources are now within reach of almost all industrializing countries, or will be so within a few short years. This changes everything. But a coal-driven industrial pathway does not look so attractive in the 21st century, especially when being pursued at the scale envisaged by China, India and other industrializing giants. One fresh perspective is that renewable energy sources can now be factored into development strategies. This was not even feasible just a few years ago because of concerns that costs were greater than those associated with consuming fossil fuels. But as China and other emerging giants have placed more and more emphasis on renewable sources – with a focus on water, wind and sun – so they have driven down the costs, with global repercussions. Renewable sources are now within reach of almost all industrializing countries, or will be so within a few short years. This changes everything. Read More here
9 December 2015, Energy Post, German grid operator can handle 70% wind, solar before storage needed. The company responsible for more than one-third of Germany’s electricity grid says there is no issue absorbing high levels of variable renewable energy such as wind and solar, and grids could absorb up to 70 per cent penetration without the need for storage, writes Giles Parkinson of Reneweconomy.com. Boris Schucht, the CEO of 50 Hertz, which operates the main transmission lines in the north and east of Germany – and which is 40 per cent owned by Australia’s Industry Funds Management – says the industry’s views of renewable energy integration has evolved rapidly in the past decade. “It’s about the mind-set,” Schucht said at the Re-energising the Future conference in Paris, and later to RenewEconomy. “10 to 15 years ago when I was young engineer, nobody believed that integrating more than 5 per cent variable renewable energy in an industrial state such as Germany was possible.” Yet, Schucht says, in the region he is operating in, 42 per cent of the power supply (in output, not capacity), came from wind and solar – about the same as South Australia. This year it will be 46 per cent, and next year it will be more than 50 per cent. “No other region in the world has a similar amount of volatile renewable energy ….. yet we have not had a customer outage. Not for 35 or 40 years.” Read More here
8 December 2015, The Conversation, Removing CO2 from the atmosphere won’t save us: we have to cut emissions now. Over 190 countries are negotiating in Paris a global agreement to stabilise climate change at less than 2℃ above pre-industrial global average temperatures. For a reasonable chance of keeping warming under 2℃ we can emit a further 865 billion tonnes of carbon dioxide (CO2). The climate commitments to reduce greenhouse gas emissions to 2030 are a first step, but recent analyses show they are not enough. So what are the options if we cannot limit emissions to remain within our carbon budget? Emitting more than the allowance would mean we have to remove carbon from the atmosphere. The more carbon we emit over the coming years, the more we will need to remove in future. In fact, out of 116 scenarios consistent with 2℃ published by the Intergovernmental Panel on Climate Change, 101 scenarios require the removal of CO2 from the atmosphere during the second half of this century. That’s on top of the large emission reductions required. So how do we remove carbon from the atmosphere? Several technologies have been proposed to this effect. These are often referred to as “negative emissions technologies” because the carbon is being removed from the atmosphere (in the opposite direction to emissions). In a study published today in Nature Climate Change, which is part of a broader release by the Global Carbon Project, we investigate how big a role these technologies could play in halting global warming. We find that these technologies might play a role in climate mitigation. However, the large scales of deployment currently used in most pathways that limit warming to 2℃ will be severely constrained by environmental and socio-economic factors. This increases the pressure to raise the level of ambition in reducing fossil fuel emissions now. Read More here