Category: Uncategorized

  • World Oceans Day which is TODAY,


    Dear Inga

    Oceans. They cover 70% of the Earth’s surface and without healthy oceans life on earth can not exist. Yet our oceans are under increasing threat from overfishing, mining and climate change and with less than 2% covered by marine protected areas the time to defend our oceans is now!

    That’s why this World Oceans Day which is TODAY, we are asking you to call on our leaders to create the world’s largest marine sanctuary in Antarctica’s Southern Ocean. This year’s celebration of World Oceans Day is timely. Next month leaders from 25 countries, including the EU, will come together to decide the fate of the last pristine ocean wilderness on Earth, Antarctica’s Southern Ocean.

    In 2008 CCAMLR (the body who manages these waters) agreed to establish a system of marine protected areas in the Southern Ocean. Fast forward five years, there are now solid proposals on the table, all our leaders need to do is stick to their word and say yes.

    Sadly without international leadership and cooperation these proposals will not succeed. How can you help? Well, there are three really easy and fast actions you can take right now:

    1. Click on this Facebook link to share the above picture and add the following message:

    “This World Oceans Day I’m calling on our leaders to protect the last pristine ocean wilderness on Earth, Antarctica’s Southern Ocean.You should too! SIGN the petition here: www.antarcticocean.org and SHARE and LIKE this image with your friends.”

    2. Share this email with five friends and ask them to do the same.

    3. If you haven’t signed the petition yet, do it right now! Go to www.antarcticocean.org.

    While Antarctica’s Southern Ocean seems far away for some of us, the reality is these waters need an entire international community involved in their protection for now and in the future.

    You’ll be hearing from us again soon as we get closer to next month’s meeting in Germany.

    Thank you!

    The AOA Team

    © Antarctic Ocean Alliance 2011
    info@antarcticocean.org | www.antarcticocean.org
  • This is what an ice-free Antarctica looks like

    This is what an ice-free Antarctica looks like

    By Adam Mann

    Check out the most detailed map of a continent never truly seen by human eyes: the de-iced surface of Antarctica. By virtually peeling back the frozen ice sheet and studying the land beneath, researchers can get a better sense of how the southern pole of our planet could react to climate change.

    Bedmap2 was created by the British Antarctic Survey, and used decades of data to produce this detailed view of the frozen continent. NASA’s contribution to the dataset includes surface measurements from its now-retired orbiting Ice, Cloud, and Land Elevation Satellite, and results from several years of flyovers by specialized aircraft that collected radar and other data measuring changes in the thickness of sea ice, glaciers, and ice sheets as part of Operation IceBridge.

    The work improves on the decade-old Bedmap project, which virtually thawed the continent, but at lower resolution. Both maps combine information on ice thickness, bedrock topography, and surface elevation. Bedmap2 added millions of extra data points and also covers a wider swath of land than its predecessor. Over on NASA’s site, you can compare the two datasets by sliding between them.

    Researchers need good information about the under-ice ground of Antarctica to better simulate its response to changing environmental conditions. Antarctica’s ice is not static but constantly flows to the sea. Knowing the shape of the bedrock and the thickness of the ice allows scientists to model these movements and predict how they could change in the future.

    unfrozencontinent
    NASAexplorer

    This story was produced by Wired as part of the Climate Desk collaboration.

    Adam Mann is a Wired Science staff writer.

  • Right now, while you’re reading this email on your phone or computer, you may have a product of slavery in your hand.

    hsi-email-logo-2013.jpg

    Dear NEVILLE,

    Right now, while you’re reading this email on your phone or computer, you may have a product of slavery in your hand.

    The reality is that almost every electronic device we use in our everyday lives could include conflict minerals mined by slaves in the Congo.

    This week, we brought together some of the world’s leading experts to discuss slavery in electronics – and right now, you can download the free podcast of that discussion to learn a few simple steps you can take to prevent slavery from entering your pocket.

    Download the podcast for FREE right now to stop supporting slavery

    You already know that many of the world’s major electronics companies fuel the demand for conflict minerals. As Sasha Lezhnev of the Enough Project explains in the podcast, ‘There are many things that consumers can do to influence these companies, and whether these companies move the needle on this issue is really up to us.’

    The greater the pressure from consumers, the more likely we are to make a real difference. By sharing this podcast on Facebook, Twitter and email, you will help educate consumers and inspire them to join you in taking action.

    Yours in solidarity,
    Amy, Kate, Debra, Mich, Jess, Nick and the Walk Free team


    Walk Free is a movement of people everywhere, fighting to end one of the world’s greatest evils: Modern slavery. 

    Follow on Twitter | Friend on Facebook | Subscribe on Youtube | View this email in your browser

    This email was sent to . You can unsubscribe from WalkFree.org at any time.

    © 2013 WalkFree.org | All rights reserved | www.walkfree.org

  • Agricultural Hegemony (MONBIOT)

    Monbiot.com


    Agricultural Hegemony

    Posted: 06 Jun 2013 01:19 AM PDT

    Why do farmers’ groups indulge in such ridiculous scaremongering about the restoration of the natural world?

     

    By George Monbiot, published on the Guardian’s website 6th June 2013

    The dam is beginning to crack, faster than I would have believed possible. Britain, one of the world’s most zoophobic nations, is at last considering the return of some of its extinct and charismatic mammal species.

    While wolves, lynx, bears, bison, moose, boar and beavers have been spreading across the Continent for decades, into countries as developed and populous as ours, and while they have been widely welcomed in those places, here we have responded to this prospect with unjustified horror.

    Or perhaps I shouldn’t say “we”. The population as a whole tends to be more sympathetic to reintroductions than the tiny number of people who own most of the land*. Britain has one of the highest concentrations of landownership in the world, and the big landowners are often the most conservative members of the population. Unfortunately they are the ones who have power in the countryside.

    (*Erlend B. Nilsen et al, 7th April 2007. Wolf reintroduction to Scotland: public attitudes and consequences for red deer management. Proceedings of the Royal Society – B, Vol. 274, no. 1612, pp.995-1003. doi: 10.1098/rspb.2006.0369)

    Despite the best efforts of the landowners, some very determined people have been trying to bring to Britain a little of what has been delighting the people of other European nations. After years of obstruction, things are suddenly starting to happen.

    Following the successful beaver reintroductions in two parts of Scotland, the first release in Wales could be about to happen. The Welsh Beaver Project hopes to be able to reinstate some animals in the Rheidol valley in mid-Wales next year.

    In Scotland a group of biologists called the Lynx UK Trust has now applied for a licence to release lynx – a predator which should be welcome in a country where deer numbers have gone beserk.

    Unsurprisingly, the old guard – the landowners and the bodies which represent them – is doing all it can to prevent such reintroductions, and any wider rewilding.

    In response to the beaver plan, a spokesman for the National Farmers’ Union said:

    “I haven’t seen any evidence that they’ll contribute anything to the eco-system. The history as far as introducing mammals in particular is not a particularly good one. We’ve seen the grey squirrel, rabbits and even mink so in reality there isn’t much evidence to suggest they do any good at all.”

    When people make arguments as bad as this, you know they haven’t a leg to stand on.

    Unlike grey squirrels, rabbits and mink, beavers are native to the United Kingdom. They were hunted to extinction for their beautiful pelts, their meat and the chemical (castoreum) they secrete, which was of great value to the perfume industry. The last ones died out in the 18th Century. They are a keystone species, which means that they have a larger influence in the ecosystem than their numbers alone would suggest.

    Their dams, burrows and ditches and the branches they drag into the water create habitats for a host of other species: water voles, otters, ducks, frogs, fish and insects. In both Sweden and Poland, the trout in beaver ponds are on average larger than those in the other parts of the streams: the ponds provide them with habitats and shelter they cannot find elsewhere*,**. Young salmon grow faster and are in better condition where beavers make their dams than in other stretches***. The total weight of all the creatures living in the water may be between two and five times greater in beaver ponds than in the undammed sections****.

    (* Åsa Hägglund and Göran Sjöberg, 1999. Effects of beaver dams on the fish fauna of forest streams. Forest Ecology and Management: Vol. 115, nos 2–3 ,pp259–266. doi:10.1016/S0378-1127(98)00404-6.
    ** Krzysztof Kukuła and Aneta Bylak, 2010. Ichthyofauna of a mountain stream dammed by beaver
    Archives of Polish Fisheries. Vol. 18, no. 1, pp33-43. doi:10.2478/v10086-010-0004-1
    *** Douglas B. Sigourney et al, 2006. Influence of Beaver Activity on Summer Growth and Condition of Age-2 Atlantic Salmon Parr. Transactions of the American Fisheries Society, Vol. 135, no. 4, pp1068-1075. doi:10.1577/T05-159.1
    **** Robert J. Naiman, Carol A. Johnston and James C. Kelley, 1988. Alteration of North American Streams by Beaver. BioScience, Vol. 38, No. 11, pp. 753-762. http://www.jstor.org/stable/1310784)

    Beavers slow rivers down. They reduce scouring and erosion. They create small wetlands and boggy areas. They trap much of the load that rivers carry*, ensuring that the water runs more clearly.

    (* Robert J. Naiman, Carol A. Johnston and James C. Kelley, 1988. Alteration of North American Streams by Beaver. BioScience, Vol. 38, No. 11, pp. 753-762. http://www.jstor.org/stable/1310784)

    The NFU’s ignorance of these basic facts reinforces the longstanding suspicion that farmers’ leaders know next to nothing about the natural world. The self-styled “guardians of the countryside” are often less well-informed than the average urbanite.

    Similarly misleading claims surround the plans to reintroduce the lynx. This is what the National Farmers’ Union says:

    “Particular concerns would be the safety of livestock and the increased stress levels in livestock resulting from these predators as well as any impacts on local wildlife and biodiversity.”

    The lynx is an ambush hunter, which lives exclusively in woodland. It will enter open spaces only with extreme reluctance. If your sheep aren’t in the woods, the lynx poses no threat to them. Only where farmers fail to keep their sheep out of the woods (something they deliberately fail to do in some places, with devastating consequences for woodland ecology) are their animals at risk.

    As for the impacts of the lynx on wildlife and biodiversity, the lynx is part of our native fauna: in other words a component of our wildlife and biodiversity. Our wildlife has adapted to live alongside it. A specialist roe deer predator, it will help to control this overpopulated species, as well as some of the exotic species of deer (sika in particular) which are damaging forestry and the regeneration of woodlands in some parts of Britain.

    But that’s not the worst of the scaremongering by farmers’ groups. In response to my book Feral, the Farmers’ Union of Wales has claimed that my proposals for the rewilding of parts of the uplands “would be akin to the herding of American Indians onto reserves.”

    That’s quite a claim. As I’ve come to expect from these organisations, the FUW has produced not a stick of evidence to support it.

    What is the fiendish device I’ve proposed to enable this act of genocide? Er, scrapping Rule 12 of the European Union’s Good Agricultural and Environmental Condition code. This rule forces farmers to clear the land of “unwanted vegetation” if they want to claim their subsidy payments. It’s a policy which has caused the pointless, taxpayer-funded destruction of habitats all over the EU.

    In other words, I’m suggesting that farmers should have a choice over whether or not they want to clear their land. If they don’t want to clear it or keep sheep on it, they can still claim their payments. Terrified yet?

    The other proposal I make is that the main subsidy they receive (the single farm payment) should be capped at 100 hectares of land. It’s outrageous that the dukes, sheikhs and speculators with the largest holdings are each receiving millions of pounds a year from taxpayers much poorer than themselves, merely by virtue of the amount they own.

    A cap would give small farmers an advantage over large ones, making it less likely that they will lose their land and livelihoods. Very much “akin to the herding of American Indians onto reserves” in other words.

    What we are seeing here is an example of how unaccustomed to challenge the farmers’ leaders have become. If their batty assertions were confronted more often, they might stop exposing themselves to ridicule. But so dominant are they in debates over rural policy, and so seldom are conflicting voices heard, that they have not had to temper their scaremongering fantasies with reality.

    Governments and other agencies treat farmers as if theirs is the only rural voice that counts. Yet they are a small minority even of the rural population. In Wales, farmers (both full- and part-time) account for 1.5% of the total population and just 5% of the rural population. A similar situation prevails across the rich world. Yet, in the countryside, they have 95% of the voice, and everyone else is marginalised from decision-making.

    You can see the impacts of this dominance in England’s impending badger cull. Professor John Bourne, who conducted the government-funded study which showed that badger killing is a waste of time and money, recalled what he was told by a senior politician:

    “Fine, John, we accept your science, but we have to offer farmers a carrot.  And the only carrot we can possibly give them is culling badgers” .

    For too long, farmers’ leaders have come to see their interests and that of the countryside as synonymous, and for too long the rest of us have accepted that view. It’s an aspect of what I call agricultural hegemony: the exercise of the cultural hegemony Antonio Gramsci identified, but in the countryside. It’s time we challenged it.

    George Monbiot’s book Feral: searching for enchantment on the frontiers of rewilding is published by Allen Lane.

  • Intermittency could be solved by storing excess solar as methane

    Intermittency could be solved by storing excess solar as methane

    June 06, 2013 | Written by Amanda H. Miller | Hits: 353
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    Project VGV aims to store excess solar as methaneAudi is the first company to develop a commercial scale plant converting excess renewable energy generation into methane gas for storage.

    Herman Pengg, head of renewable fuels for Audi, joined international nuclear energy attorney Corinne Lepage and University of New York Professor Robert Bell in a Planetworkshops Global Conference discussion about the new Project Volt Gas Volt that the latter two introduced last week in the European Parliament in Brussels.

    Project VGV converts excess solar and wind energy generation into methane that can be stored in the natural gas grid and used as heating fuel, to generate electricity or even as a replacement for vehicle fuels.

    Audi completed the world’s first industrial-scale installation of the technology this month and will use it as a demonstration of the technology’s viability in the market.

    Pengg explained the technology to Automotive Engineer in November.

    Audi has wind and solar electricity generation capacity. “(The technology) draws electricity whenever there is a surplus, balancing fluctuations in supply,” pengg said.

    The first step of the process converts the electricity to hydrogen through electrolysis. The process could stop there. But Audi is interested in developing an alternative fuel that can easily replace gasoline. And since there is no existing infrastructure for hydrogen cars, Pengg said Audi takes the process further. They combine the hydrogen with Carbon Dioxide to produce CH4 – methane. Since methane is the main component in natural gas, it can easily be used to replace gasoline.

    “This is what we call Audi e-gas,” Pengg said in November.

    He said then that Audi does not intend to become an energy producer. Once the car manufacturer proves the technology, he expects the industry to take over.

    Lepage and Bell have spoken about Project VGV in the last weeks as a sound alternative to nuclear power and other traditional electricity sources. This could be the grid storage answer the renewable energy industry has been looking for, they say.

    “A breakthrough in energy storage permits a constant flow of electricity,” according to a press release from the pair issued after the EU presentation, “allowing for a shift to 100 percent renewable energy sources, overcoming the major obstacle of intermittent flow of energy.”

    If excess renewable energy can be converted to methane and stored in the natural gas grid, it would not only make renewable energy a viable source for all energy needs, Lepage argued. It would also eliminate the need for the controversial hydraulic fracturing process used to extract natural gas.

    “With Project VGV, industry and government have the solution for a successful energy transition to optimize wind and solar energy,” Lepage said.

     
     

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  • Warming Alaska, Canada glaciers send 100 gigatons of ice into ocean each year

    Warming Alaska, Canada glaciers send 100 gigatons of ice into ocean each year

    Molly Rettig

    June 6, 2013
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    The total loss of mass from melting glaciers is so giant it changes the earth’s gravity field and alters ocean currents around Alaska. In fact, parts of the earth can bounce up several centimeters when an ancient ice boulder lets loose. Loren Holmes photo

    Every summer, Alaska’s glaciers melt and send vast quantities of water gushing through silty gray rivers, past towns and villages and finally into the sea. Some glaciers calve directly into the ocean, instantly losing car-sized chunks of ice and wowing boats full of tourists.

    Melting glaciers are boosting ocean levels 0.71 millimeters a year, accounting for roughly one-third of total sea level rise, according to a recent study.

    “That’s the equivalent of draining the Great Lakes once a month each year,” says Regine Hock. She and colleague Anthony Arendt, both glaciologists at the University of Alaska Fairbanks Geophysical Institute, have contributed to an article in Science on the role of glaciers in sea-level rise. Alaska and Canada make up nearly half of that — purging 100 gigatons of mass annually from frozen storage into the ocean.

    Oceans rise an inch in 10 years

    The mass loss, which scientists call wastage, is so massive that it changes the earth’s gravity field and alters ocean currents around Alaska. It’s so heavy that parts of the earth can bounce up several centimeters in response. Alaska scientists were part of an international team that calculated the ice loss of glaciers around the world from 2003-2009 using satellite data and ground measurements.

    “When many people think about sea level rise, they only think about the big ice sheets in Greenland and Antarctica. They don’t think these smaller ones can contribute anything,” says Hock.

    The other two-thirds of total sea level rise come from equal parts melting ice sheets and the warming and expansion of oceans. Overall, oceans have risen 2.5 millimeters a year since 2003.

    “In 10 years, that’s an inch. That’s quite a lot,” says Hock.

    It trickles in from the state’s favorite glaciers — Gulkana in the Alaska Range, Exit in Seward, Portage on the Kenai Peninsula, Mendenhall in Juneau, Columbia on Prince William Sound, and several throughout the Wrangell mountains.

    Where does it go?

    “Most of the meltwater ends up in streams and eventually makes its way to the oceans,” Hock says. This affects not just the ocean but the overall hydrology of the earth. Communities in the Andes, for example, rely on glacial runoff for water during the dry summer season. The more ice that’s lost, the smaller their water source.

    Salmon affected

    Glacier water is cold and fresh, which affects the temperature and chemistry of rivers and oceans — and can impact fisheries and ecosystems. “Salmon and other species are really sensitive to stream composition. If the temperature changes just a few degrees, that might affect whether salmon can spawn,” Arendt says.

    Glacier mass changes have traditionally been estimated by field measurements of individual glaciers. “It’s really old school,” Arendt says. Scientists dig a snow pit in the winter and measure the snow accumulation, calculate its density, and then convert it to water equivalent. This tells them the annual growth of the glacier.

    To calculate melting, they drill a stake into the ice at the beginning of summer and measure the height sticking above the surface. An end-of-summer measurement reveals how much was lost. This depth is converted to water equivalent and extrapolated to the whole basin. The melt has greatly outpaced snowfall, according to these observations. But because of logistics, there are only a handful of such field sites over Alaska’s vast ice-covered region.

    To capture broader changes, the new study combined conventional field measurements with satellite data. One tool was measuring the gravitational force exerted by glaciers.

    From Newton, we know that greater mass means larger gravitational force. When a satellite crosses a large mass (like an ice sheet) it speeds up a little because of the greater force. Over areas with less mass, the satellite slows down. By tracking satellite positions over time, you can estimate changes in the ice sheet.

    They determined the volume loss by measuring the distance between a satellite and the glacier.  “You bounce a laser off the surface and it tells you the height. You come back at a later time and map that height again,” says Arendt.

    What does this mean for the world — and Alaska?

    Shrinking glaciers, shrinking tourism?

    Some coastlines will be hit harder than others, depending on which glacier regions melt the most. Sea levels will actually drop in Alaska, as the weight of glaciers is lifted and the earth rises relative to the water. “As the glaciers disappear, and you take off that load, it allows the earth’s crust to rebound in response,” Hock says.

    Smaller glaciers, like those in the Brooks Range, will disappear faster than bigger, high-elevation glaciers like those in the St. Elias Mountains. As glaciers shrink, so could tourism.

    Understanding glacier wastage can help predict flooding in river communities and plan energy projects. “With hydropower coming online, these companies need to know how much water will be transported into these watersheds and how that will change in the future,” Hock says.

    Read the full article, “A Reconciled Estimate of Glacier Contributions to Sea Level Rise: 2003-2009” here.

    Molly Rettig is a science writer with the University of Alaska Fairbanks who is filling in for Ned Rozell this summer. 

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