28 June 2017, Renew Economy, “Baseload”: An outdated term that should not be confused with “reliability”. The “coal versus no new coal” debate has come to define the battle lines over Australia’s energy future. It can basically be boiled down to one concept: the assumption that we have to rely on baseload power for the reliability and security of out electricity supply. A new report from the US highlights how the concept of “baseload” is really just an artefact of an old industry, and points out that baseload should not be confused with reliability. The two do not go hand in hand, and hanging on to the term is getting in the way of planning for the future. “Baseload power”, however, is a line encouraged by the fossil fuel industry, happy that “baseload” has become a marketing tool, in the same way that it has exploited the idea of “clean coal” and “energy poverty” to pursue their interests. The Brattle Group report was commissioned by the NRDC, a US-based NGO, just as the Trump administration prepares its own battle over the future of “baseload” in a rapidly changing energy market. It prompted this series of tweets. Read More here
Yearly Archives: 2017
26 June 2017, Washington Post, Sea level rise isn’t just happening, it’s getting faster. In at least the third such study published in the past year, scientists have confirmed seas are rising, and the rate of sea level rise is increasing as time passes — a sobering punchline for coastal communities that are only now beginning to prepare for a troubling future. What was a 2.2 millimeter per year rise in 1993 was a 3.3 millimeter rise in 2014, based on estimates of the mass changes of a number of key components of sea level rise, such as the melting of the Greenland and Antarctic ice sheets, the study in Nature Climate Change found. That’s the difference between 0.86 and 1.29 inches per decade — and the researchers suggest further sea level acceleration could be in store. The chief cause of the acceleration was the melting of the Greenland ice sheet, which went from contributing under 5 percent of all sea level rise in 1993 to contributing over 25 percent in 2014, the study found. The loss of ice in Antarctica and smaller glaciers over the same time period also contributed to quicker sea level rise. The increase in the rate of sea level rise “highlights the importance and urgency of mitigating climate change and formulating coastal adaptation plans to mitigate the impacts of ongoing sea level rise,” write Xianyao Chen of the Ocean University of China and Qingdao National Laboratory of Marine Science and Technology, and colleagues. Chen’s co-authors hailed from institutions in China, Australia and the United States. “We understand why the sea level is accelerating and we’re understanding what the components are contributing,” said Christopher Harig, one of the study’s authors and a researcher at the University of Arizona. Earlier this year, a different group of researchers found sea level rise was only about 1.1 millimeters per year before 1990, whereas in the period between 1993 through 2012 it was 3.1 millimeters per year. NASA, at present, puts the rate of sea level rise at 3.4 millimeters per year. But while the individual estimates differ, the broader picture is that researchers generally agree that the rate of sea level rise is increasing — and that this will have major consequences for coastal regions, which will have less time to adapt if sea level rise acceleration continues. Read More here
22 June 2017, Renew Economy, Australia’s new citizenship test: swear allegiance to Queen and Coal. The Coalition government’s new citizenship test appears to include talking points that might have been prepared by the coal industry in defending their role in climate change.Details of the extraordinarily complex reading material that new citizens are being asked to comprehend, in preparation for their citizenship tests, have been revealed in The Australian newspaper, which was concerned by the level of complexity in the language. What struck us at RenewEconomy from the examples used by The Australian was the nature of the content. It looked like marketing spiel from the coal industry, so we checked it out further. Take this, for example: “Clean coal is another avenue for improving fuel conversion efficiency. Investigations are under way into super-clean coal (35 per cent ash) and ultraclean coal (less than 1 per cent ash). Super-clean coal has the potential to enhance the combustion efficiency of conventional pulverised fuel power plants.” And on it goes. You can read more here. But having absorbed this, the hopeful new citizen is then given some practice multiple choice questions. Such as: Read More here and be astounded by the audacity!
19 June 2017, The Conversation, Are heatwaves ‘worsening’ and have ‘hot days’ doubled in Australia in the last 50 years? The release of the Finkel report has refocused national attention on climate change, and how we know it’s happening. On a Q&A episode following the report’s release, Climate Council CEO Amanda McKenzie said we’ve seen: … worsening heatwaves, hot days doubling in Australia in the last 50 years. ….There’s not a large body of research against which to test this claim. But the research we do have suggests there has been an observable increase in the frequency and intensity of heatwaves in Australia. Research published in 2013 found a trend towards more heat waves in Australia between 1951 and 2008. A review paper published in 2016 assessed evidence from multiple studies and found that heatwaves are becoming more intense and more frequent for the majority of Australia. The following chart shows heatwave days per decade from 1950 to 2013, highlighting a trend toward more heatwave days in Australia over time: Read More here