6 February 2018, Climate News Network, Ozone layer recovery falters unexpectedly. The Earth’s protective ozone layer is not recovering uniformly from the damage caused to it by industry and other human activities. And scientists are not sure why it isn’t. An international research team says the ozone, which protects humans and other species from harmful ultraviolet radiation, is continuing to recover at the poles. But recovery at lower latitudes, where far more people live, is not. The layer has been declining since the 1970s because of the effect of man-made chemicals, chiefly chlorofluorocarbons (CFCs) and similar gases, used mainly in refrigerants and aerosols. There is a link between the CFCs and global warming, though they are different and neither is the main cause of the other. Some suggested CFC replacements themselves proved to be powerful greenhouse gases. CFCs and the other gases were banned under an international agreement, the Montreal Protocol, and since then parts of the layer have been recovering, particularly at the poles. But the latest research, published in the journal Atmospheric Chemistry and Physics, finds that the bottom part of the ozone layer at more populated latitudes is not recovering, for reasons so far unidentified. Read More here
Tag Archives: consumption
29 January 2018, Renew Economy, Victorian networks blow a fuse in heatwave – Coalition blows its mind on Twitter. Conservatives love a summer blackout. And with two-thirds of peak blackout season already gone, they were not going to miss the opportunity presented by last night’s outages across Victoria to point the finger at renewable energy, the state Labor government’s support of renewables, and most of all last year’s closure of the privately owned Hazelwood coal-fired power plant. The only slight hitch in this ingenious plan is that none of the above had anything at all to do with it. On Sunday, the state reached record grid demand for a Sunday in the midst of the heatwave, but around 55,000 Victorians suffered without power at various times on Sunday evening – and many continue to do so on Monday – after faults across the state’s distribution networks. As explained by the Energy Networks Association, the assorted network companies, and the Australian Energy Market Operator, the blackouts were caused by faults in the *delivery* of the electricity – and not the *supply* or generation of it. That is, as absolutely everyone in the state turned their air conditioners up to 11 to cope with temperatures hovering around 40°C – and an overnight low of around 30°C – the state’s “poles and wires” (mostly substation fuses) systems were overwhelmed by demand that peaked at around 9,144MW: “the highest operational demand for a Sunday, ever,” says AEMO. Read More here
11 January 2018 Boomberg, Hype Meets Reality as Electric Car Dreams Run Into Metal Crunch. When BMW AG revealed it was designing electric versions of its X3 SUV and Mini, the going rate for 21 kilograms of cobalt—the amount of the metal needed to power typical car batteries—was under $600. Only 16 months later, the price tag is approaching $1,700 and climbing by the day. For carmakers vying to fill their fleets with electric vehicles, the spike has been a rude awakening as to how much their success is riding on the scarce silvery-blue mineral found predominantly in one of the world’s most corrupt and underdeveloped countries. “It’s gotten more hectic over the past year,” said Markus Duesmann, BMW’s head of procurement, who’s responsible for securing raw materials used in lithium-ion batteries, such as cobalt, manganese and nickel. “We need to keep a close eye, especially on lithium and cobalt, because of the danger of supply scarcity.” Like its competitors, BMW is angling for the lead in the biggest revolution in automobile transport since the invention of the internal combustion engine, with plans for 12 battery-powered models by 2025. What executives such as Duesmann hadn’t envisioned even two years ago, though, was that they’d suddenly need to become experts in metals prospecting. Automakers are finding themselves in unfamiliar—and uncomfortable—terrain, where miners such as Glencore Plc and China Molybdenum Co. for the first time have all the bargaining power to dictate supplies. Read More here
19 December 2017, CSIRO-ECOS, Refining the accounts on canola emissions savings. BIOFUELS are about to work even harder to prove their renewable worth, under new European Union rules. From 2018 the European Commission’s Renewable Energy Directive mandates that biofuels must demonstrate a 50 per cent emissions saving compared to their fossil fuel companions (or a 60 per cent saving when produced in refineries constructed after October 2015), compared to a flat 35 per cent saving now. CSIRO was commissioned by the Australian Oilseed Federation and the Australian Export Grains Innovation Centre to assess the greenhouse gas emissions of growing canola in Australia, in order to continue exports to the European Union for use as a feedstock for biodiesel under the new rules. In 2016/17, more than 3.1 million tonnes of Australian canola was exported to the EU, worth around $1.8 billion. EU buyers can pay a $20-40 per tonne premium for non-genetically modified canola (which Australia primarily produces), making the EU export market one with a cool $100 million premium riding on it. The vast majority of this canola (91 per cent in 2015-16) is used to make biodiesel. To secure this important export market the Australian industry needed to demonstrate that canola can be grown at a low enough carbon footprint so that once all the other processes of shipping and refining are added, the final product can be deliver to the customer at the fuel bowser within the target saving of 50-60 per cent. We are happy to say it did. Read More here