14 February 2016, BREITBART, Some 150,000 penguins died after a massive iceberg grounded near their colony in Antarctica, forcing them to make a lengthy trek to find food, scientists say in a newly-published study. The B09B iceberg, measuring some 100 square kilometres (38.6 square miles), grounded in Commonwealth Bay in East Antarctica in December 2010, the researchers from Australia and New Zealand wrote in the Antarctic Science journal. The Adelie penguin population at the bay’s Cape Denison was measured to be about 160,000 in February 2011 but by December 2013 it had plunged to an estimated 10,000, they said. The iceberg’s grounding meant the penguins had to walk more than 60 kilometres (37 miles) to find food, impeding their breeding attempts, said the researchers from the University of New South Wales’ (UNSW) Climate Change Research Centre and New Zealand’s West Coast Penguin Trust. “The Cape Denison population could be extirpated within 20 years unless B09B relocates or the now perennial fast ice within the bay breaks out,” they wrote in the research published in February. Fast ice is sea ice which forms and stays fast along the coast. During their census in December 2013, the researchers said “hundreds of abandoned eggs were noted, and the ground was littered with the freeze-dried carcasses of previous season’s chicks”. Read more here
Category Archives: Ecosystem Stress
9 February 2016, Climate Home, Climate-linked bushfire warning as Tasmania’s ancient forests blaze. Trees 1,000 years old have been caught in the weeks-long blaze, sparked by lightning strikes in unusually dry conditions. More than 100,000 hectares have been blackened. The inferno comes as evidence mounts that human-caused climate change is raising the risk of bushfires, warned think tank the Climate Institute. “It points to the need for a two-pronged strategy,” said CEO John Connor: “To be working hard to cut carbon pollution while, at the same time, building greater resilience to bushfires caused by the global warming already locked in.” The Climate Institute drew on research by lead science agency CSIRO and the Bureau of Meteorology. They had found an increase in the frequency and severity of fires in more than 42% of southern Australia since 1973. With high levels of future warming, models show the number of “very high” fire days in Tasmania could more than double. It threatens world heritage forests that have not evolved to cope with cycles of fire and regrowth, unlike Australia’s hardier eucalyptus. Tasmania’s parks service, in a review of the response to severe bushfires in 2013, said dry lightning had taken over from arson as the major cause. But that should not be seen as a natural phenomenon to be left unmanaged, it argued, “if human-induced climate change is a contributing factor”. Conservationists are calling for a public inquiry into the authorities’ handling of fire risk. Michael Grose from CSIRO told the Guardian Australia human activity was making dry, fire-friendly conditions more likely. “Hotter temperatures, reduced rainfall in key seasons [and] worse fire weather, are all consistent with what is projected with climate change, particularly under a high-emission scenario,” he said. Read More here
4 February 2016 Global Footprint newsletter article , If an acre of forest burns up in flames, what’s the cost? Zero, was FEMA’s reply in 2013. The Federal Emergency Management Agency rejected California’s request for a federal “major disaster” declaration and funding after the devastating Rim Fire, because it only knew how to put a price tag on man-made structures. The 400 square miles of forests that had been reduced to ashes and charred stumps—including part of Yosemite National Park—couldn’t translate into dollar amounts.How times have changed. Two weeks ago, the state of California was named one of the 13 winners of the National Disaster Resilience Competition by the U.S. Department of Housing and Urban Development (HUD) and the Rockefeller Foundation. California won more than $70 million to help fund several disaster preparedness projects in communities affected by the Rim Fire. What happened? As extreme weather events have become more frequent due to climate change, decision-makers are realizing that conventional project assessments won’t do, and that building strong, resilient communities requires drastically innovative approaches. In a first for a federal agency, the HUD Office of Economic Resilience, in collaboration with the Rockefeller Foundation, mandated that nature be a key element in the design of development projects submitted to the $1 billion competition. HUD required all applicants to use a more complete benefit-cost analysis developed by Earth Economics, a close partner of Global Footprint Network. It is exactly the kind of approach that Global Footprint Network and Earth Economics called for in July in our State of the States Report, which found the United States demands twice the resources that its ecosystems can regenerate. It is also similar to the approach that Global Footprint Network piloted with the state of Maryland when developing our Net Present Value Plus tool. Read more here
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