28 January 2016, Renew Economy, Hunt under pressure as Australia loses climate cred, gains carbon risk. Australia’s poor record on climate change action and energy market reform has been highlighted by two major global publications this week, bringing environment minister Greg Hunt under renewed pressure to defend his department’s policy. The first, the latest rankings of the Yale environmental performance index – described by Hunt himself as “the most credible, scientifically based, hard data-based analysis in the world – shows Australia has dropped 10 places in its overall ranking on “protecting human health and ecosystems”, leaving it at 13 out of 180 countries examined (just below Saudi Arabia). According to reports, where Australia lost most of its ground on the index was in the categories of electricity generation, where it is ranked at number 150 out of 180, and in climate. This point has been seized upon by Opposition climate spokesman Mark Butler, who said in a statement on Thursday that the index downgrading showed that the Turnbull government was taking Australia backwards on climate change “at a shocking pace”. Butler – who launched the first round of consultation on the Labor party’s 2030 emissions reduction target on Wednesday – also noted that while nearly every other country had improved its EPI score, Australia had turned up very close to the bottom of the pack on carbon trends. “I think the rest of the world is waking up to the fact that although there’s a different person at the front of the government, the policies haven’t changed,” Butler told Fran Kelly in an ABC Radio interview. “We have inadequate targets, we have a government that has no renewable energy policy beyond 2020, and we have a policy in Direct Action that’s actually seeing emissions rise again after having come down 8 per cent during our term in government, they will rise by 6 per cent between now and 2020 according to the government’s own official data.” Read More here
hmcadmin
28 January 2016, Climate Home, Scientists pour cold water on ocean geoengineering idea. One keenly-argued possible way of moderating the build-up of carbon dioxide in the atmosphere may not work, scientists have concluded. They say there is evidence that seeding the oceans with iron so that the algae that live there will multiply and devour more CO2 − thus preventing it reaching the atmosphere and intensifying the human contribution to global warming – is not as promising a solution as its supporters hope. The extra iron can certainly stimulate the algae to grow more vigorously, but at a cost. More algae in one part of the oceans may mean there will be fewer in other areas, the researchers say. Report: Scientists warn against geoengineering as short-term climate fix. They report in Nature journal that the depths of the central Pacific Ocean contain ancient sediments that cast doubt on iron’s ability to slow the Earth’s steady temperature rise. In parts of the oceans that lack the iron that plants need, algae are scarce. Experiments have shown that dumping iron into these areas can encourage algal growth, so large-scale fertilisation could theoretically reduce atmospheric CO2. The seafloor sediments the team studied show that, during past ice ages, more iron-rich dust blew from cold and barren landmasses into the oceans, apparently producing more algae in these areas and, presumably, a creating natural cooling effect. But the researchers say increased algal growth in one area can inhibit growth elsewhere, because ocean waters are always on the move and algae also need other nutrients, such as nitrates and phosphates. Read More here
28 January 2016, Science Daily, Intact nature offers best defense against climate change. Worldwide responses to climate change could leave people worse off in the future according to a recent study conducted by CSIRO, Wildlife Conservation Society (WCS) and the University of Queensland. The paper, “Intact ecosystems provide the best defense against climate change,” published in Nature Climate Change, discusses how certain adaptation strategies may have a negative impact on nature which in turn will impact people in the long-term. “In response to climate change, many local communities around the world are rapidly adjusting their livelihood practices to cope with climate change, sometimes with catastrophic implications for nature,” according to CSIRO’s principal research scientist Dr. Tara Martin. The authors say that in Australia and Canada, conservation reserves are being used as drought relief to feed livestock, while forests in the Congo Basin in Africa are being cleared for agriculture in response to drought, and coral reefs are being destroyed to build sea walls from the low-lying islands in Melanesia. Dr. Martin added: “These are just few of the human responses to climate change that, if left unchallenged, may leave us worse off in the future due to their impacts on nature. Functioning and intact, forests, grasslands, wetlands and coral reefs represent our greatest protection against floods and storms.” The paper states that intact native forests have been shown to reduce the frequency and severity of floods, while coral reefs can reduce wave energy by an average of 97 per cent, providing a more cost-effective defense from storm surges than engineered structures. Read More here
25 January 2016, Renew Economy, Tasmania grid struggles with drought, bushfires, lost connection. Tasmania’s electricity grid is facing its biggest challenge in years, with its hydro storage about to fall to its lowest levels ever, bushfires forcing the closure of some power facilities, and a faulty cable cutting the connection between the island and the country’s main electricity grid. The Apple Isle’s main source of electricity – hydro power – is being challenged by its driest ever spring, pushing reserves down to just 18.9 per cent. The lowest level ever is 16.5 per cent, reached in 2007, but overall storage levels are predicted to fall to a low of 14 per cent by the end of March – if normal rainfall patterns resume. At current rates, however, some fear they may fall below those levels, although there has been some light rain in recent days. To make matters worse, the Basslink cable linking the island’s grid to the mainland has been cut by technical problems, and will probably remain closed for another two months, while the raging bushfires have threatened power lines and forced the temporary closure of at least four hydro plants. “These circumstances are extraordinary and unprecedented,” Premier Will Hodgman and energy minister Matthew Groom said in a joint statement late last week. “It will be tough, but we will get through it.” To address the issue, the government has had to bring its Tamar Valley gas power generator – scheduled for permanent closure last year – out of mothballs. That has provided 280MW of added capacity, but the government is now looking to bring another 105MW of gas and diesel power back into the system to hedge against further depletion of its hydro resources. Read More here