12 October 2015, Washington Post, Why the Earth’s past has scientists so worried about the Atlantic Ocean’s circulation. In the last month, there’s been much attention to a cool patch in the North Atlantic Ocean, where record cold temperatures over the past eight months present a stark contrast to a globe that is experiencing record warmth. And although there is certainly no consensus on the matter yet, some scientists think this pattern may be a sign of one long-feared consequence of climate change — a slowing of North Atlantic ocean circulation, due to a freshening of surface waters. The cause, goes the thinking, would be the rapidly melting Greenland ice sheet, whose large freshwater flows may weaken ocean “overturning” by reducing the density of cold surface waters (colder, salty water is denser). If cold, salty waters don’t sink in the North Atlantic and flow back southward toward Antarctica at depth, then warm surface waters won’t flow northward to take their place. The result could be a significant change to northern hemisphere climate, as less ocean-borne heat reaches higher latitudes. Read More here
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12 October 2015, Yale Environment 360, The Rapid and Startling Decline Of World’s Vast Boreal Forests. Scientists are becoming increasingly concerned about the fate of the huge boreal forest that spans from Scandinavia to northern Canada. Unprecedented warming in the region is jeopardizing the future of a critical ecosystem that makes up nearly a third of the earth’s forest cover. The boreal forest wraps around the globe at the top of the Northern Hemisphere in North America and Eurasia. Also known as taiga or snow forest, this landscape is characterized by its long, cold and snowy winters. In North America it extends from the Arctic Circle of northern Canada and Alaska down into the very northern tip of the United States in Idaho, Washington, Montana, and Minnesota. It’s the planet’s single largest biome and makes up 30 percent of the globe’s forest cover. Moose are the largest ungulate in the boreal, adapted with their long legs to wade in its abundant marshes, lakes and rivers eating willows, aspen and other plants. In the southern boreal forest of northern Minnesota, moose were once plentiful, but their population has plummeted. Thirty years ago, in the northwest part of the state, there were some 4,000; they now number about a hundred. In the northeast part, they have dropped from almost 9,000 to 4,300. They’ve fallen so far, so fast that some groups want them listed as endangered in the Midwest. Read More here
8 October 2015, The Conversation, FactCheck: does Australia co-operate with the UN on its human rights obligations? At its narrowest interpretation, Brandis is correct: at a purely procedural level, it is true that Australia does comply with its formal obligations to report to the UN, and has issued an open invitation for UN investigators called Special Rapporteurs to visit. However, taken more broadly, Brandis overstates Australia’s human rights record i relation to the UN. Australia has been widely criticised, including by the UN, for its weak compliance with substantive obligations to respect, protect and fulfil human rights. Australia and the UN The “UN envoy” that Insiders host Barrie Cassidy mentions is United Nations Special Rapporteur on the Human Rights of Migrants, Francois Crepeau. To understand Brandis’ reply, we must first understand the role of a Special Rapporteur. The UN Human Rights Council is a body established by the UN General Assembly to oversee human rights compliance by UN member countries (“states”). The UN uses what it calls “special procedures” for this purpose, such as Special Rapporteurs, Independent Experts and Working Groups, to investigate and report on human rights issues, or the situation in particular states. Current issues under investigation include education, food, freedom of expression, and indigenous peoples. A special procedures visit to a state is only by invitation, and so a request is made for an invitation from a state. Some states issue the requested invitation and some don’t. Some states have issued a standing invitation, indicating a willingness to receive visits at any time. Australia issued a standing invitation in 2008, before which it agreed to every request it had received. Under the standing invitation, Australia has received special procedure visits on Indigenous people, health, foreign debt, and people trafficking; previously it received visits on freedom of religion or belief, contemporary forms of racism, arbitrary detention, and adequate housing. Read More here
8 October 2015, TomDispatch, Welcome to a New Planet Climate Change “Tipping Points” and the Fate of the Earth By Michael T. Klare. Not so long ago, it was science fiction. Now, it’s hard science — and that should frighten us all. The latest reports from the prestigious and sober Intergovernmental Panel on Climate Change (IPCC) make increasingly hair-raising reading, suggesting that the planet is approaching possible moments of irreversible damage in a fashion and at a speed that had not been anticipated. Scientists have long worried that climate change will not continue to advance in a “linear” fashion, with the planet getting a little bit hotter most years. Instead, they fear, humanity could someday experience “non-linear” climate shifts (also known as “singularities” or “tipping points”) after which there would be sudden and irreversible change of a catastrophic nature. This was the premise of the 2004 climate-disaster film The Day After Tomorrow. In that movie — most notable for its vivid scenes of a frozen-over New York City — melting polar ice causes a disruption in the North Atlantic Current, which in turn triggers a series of catastrophic storms and disasters. At the time of its release, many knowledgeable scientists derided the film’s premise, insisting that the confluence of events it portrayed was unlikely or simply impossible. Fast forward 11 years and the prospect of such calamitous tipping points in the North Atlantic or elsewhere no longer looks improbable. In fact, climate scientists have begun to note early indicators of possible catastrophes. Read More here