Smart Grid prepares to Enter the Home

Attaching appliances to a power socket via a smart plug containing sensors and a ZigBee transceiver allows information about the appliances’ power consumption to be beamed automatically to a broadband router within the home, and thence to a web server located elsewhere. Consumers can interrogate this server from a PC or iPhone to see not only the consumption pattern of various appliances attached to smart plugs around the home, but also to send instructions back to switch them on or off.

“People make 10-20% savings when they get this kind of information,” says Adrian Tuck, Tendril’s chief executive. “And remember every kilowatt saved in the home saves three at the generating station.”

If half the households in America cut their power consumption by just 10%, it would be like taking 8m cars off the road. Or doubling the amount of energy produced from renewable sources, such as expensive, roof-top solar panels. Read the whole article


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How to stop the drug wars

Drugs impose a terrible cost on society and Western Australia is no different in this respect to the rest of the world.

In the following article, Economist.com argues that legalisation is the 'least bad' option. A HUNDRED years ago a group of foreign diplomats gathered in Shanghai for the first-ever international effort to ban trade in a narcotic drug. On February 26th 1909 they agreed to set up the International Opium Commission—just a few decades after Britain had fought a war with China to assert its right to peddle the stuff. Many other bans of mood-altering drugs have followed. In 1998 the UN General Assembly committed member countries to achieving a “drug-free world” and to “eliminating or significantly reducing” the production of opium, cocaine and cannabis by 2008. That is the kind of promise politicians love to make. It assuages the sense of moral panic that has been the handmaiden of prohibition for a century. It is intended to reassure the parents of teenagers across the world. Yet it is a hugely irresponsible promise, because it cannot be fulfilled.Read on about the drug war at economist.com


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China - Economic Lifeboat for Western Australia

Beijing announced a 4 trillion renminbi ($907 billion) stimulus package last November, but expectations are that Chinese leaders will need to announce more measures to deliver the ambitious growth target, which has clearly been set with an eye to ensuring stability in the face of the world economic downturn to cope with issues such as the 20 million unemployed migrant workers now returning to the countryside.  Read more


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Renewable Energy From Artificial Trees: SolarBotanic's Fascinating Designs

SolarBotanic is a company with a big, well-researched, immaculately-documented, patented-up plan for renewable energy from artificial trees. Using wind and solar energy, SolarBotanic's plan for individual homes and energy grids may end up costing users 50 percent less than current solar systems. And, as SolarBotanic is quick to point out, its plan is far better looking than photovoltaic panels or wind turbines.

Sure the artificial trees are inspired by real trees, and SolarBotanic's Nanoleaves convert sunlight into energy just like tree leaves, but the energy user is not the leaf or the tree itself. To convert sunlight into energy, the Nanoleaves contain photothermovoltaic cells, that convert the whole spectrum of light, even light we can't see, like radiation, into electricity,

Nano piezo electric generators in the twigs and branches, simultaneously convert wind into millions of Pico watts. The more the wind blows, the more the leaves move (flap frequency), the more the Nano piezo generators are stimulated to make more energy, and then you have trillions of Pico watts!

Another fascinating SolarBotanic technology is used to separate the carbon dioxide from other elements in the air. It involves biomimicry of the human lung . The device at the bottom of the tree below has a fixed carrier in the membrane that enables only the "good" air molecules to convert to energy. Read on


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TED - Ideas Worth Spreading

TED stands for Technology, Entertainment, Design. It started out (in 1984) as a conference bringing together people from those three worlds. Since then its scope has become ever broader.

The annual conference now brings together the world's most fascinating thinkers and doers, who are challenged to give the talk of their lives (in 18 minutes). Every presentation is available as a high quality video stream. This site is well worth a visit!

Bill Gates, Al Gore, Richard Branson, Stewart Brand, Richard Dawkins and many more great thinkers of our time have presented at TED. All their presentations are available.

Click here to go to TED.com

 


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The MAGLEV - Super Powered Wind Turbine for Western Australia

This high-output wind turbine can power 750,000 homes and only needs 100 acres of space. The machine runs on magnetic levitation so moving parts are not required. Read more

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How to survive the coming century - environment - 25 February 2009 - New Scientist

ALLIGATORS basking off the English coast; a vast Brazilian desert; the mythical lost cities of Saigon, New Orleans, Venice and Mumbai; and 90 per cent of humanity vanished. Welcome to the world warmed by 4 °C.

Clearly this is a vision of the future that no one wants, but it might happen. Fearing that the best efforts to curb greenhouse gas emissions may fail, or that planetary climate feedback mechanisms will accelerate warming, some scientists and economists are considering not only what this world of the future might be like, but how it could sustain a growing human population. They argue that surviving in the kinds of numbers that exist today, or even more, will be possible, but only if we use our uniquely human ingenuity to cooperate as a species to radically reorganise our world.

The good news is that the survival of humankind itself is not at stake: the species could continue if only a couple of hundred individuals remained. But maintaining the current global population of nearly 7 billion, or more, is going to require serious planning.

A 4 °C rise could easily occur. The 2007 report of the Intergovernmental Panel on Climate Change, whose conclusions are generally accepted as conservative, predicted a rise of anywhere between 2 °C and 6.4 °C this century. And in August 2008, Bob Watson, former chair of the IPCC, warned that the world should work on mitigation and adaptation strategies to "prepare for 4 °C of warming".

A key factor in how well we deal with a warmer world is how much time we have to adapt. When, and if, we get this hot depends not only on how much greenhouse gas we pump into the atmosphere and how quickly, but how sensitive the world's climate is to these gases. It also depends whether "tipping points" are reached, in which climate feedback mechanisms rapidly speed warming. According to models, we could cook the planet by 4 °C by 2100. Some scientists fear that we may get there as soon as 2050.

The last time the world experienced temperature rises of this magnitude was 55 million years ago, after the so-called Palaeocene-Eocene Thermal Maximum event. Then, the culprits were clathrates - large areas of frozen, chemically caged methane - which were released from the deep ocean in explosive belches that filled the atmosphere with around 5 gigatonnes of carbon. The already warm planet rocketed by 5 or 6 °C, tropical forests sprang up in ice-free polar regions, and the oceans turned so acidic from dissolved carbon dioxide that there was a vast die-off of sea life. Sea levels rose to 100 metres higher than today's and desert stretched from southern Africa into Europe.

While the exact changes would depend on how quickly the temperature rose and how much polar ice melted, we can expect similar scenarios to unfold this time around. The first problem would be that many of the places where people live and grow food would no longer be suitable for either. Rising sea levels - from thermal expansion of the oceans, melting glaciers and storm surges - would drown today's coastal regions in up to 2 metres of water initially, and possibly much more if the Greenland ice sheet and parts of Antarctica were to melt.

Half of the world's surface lies in the tropics, between 30° and -30° latitude, and these areas are particularly vulnerable to climate change. India, Bangladesh and Pakistan, for example, will feel the force of a shorter but fiercer Asian monsoon, which will probably cause even more devastating floods than the area suffers now. Yet because the land will be hotter, this water will evaporate faster, leaving drought across Asia. Bangladesh stands to lose a third of its land area - including its main bread basket.

The African monsoon, although less well understood, is expected to become more intense, possibly leading to a greening of the semi-arid Sahel region, which stretches across the continent south of the Sahara desert. Other models, however, predict a worsening of drought all over Africa. A lack of fresh water will be felt elsewhere in the world, too, with warmer temperatures reducing soil moisture across China, the south-west US, Central America, most of South America and Australia. All of the world's major deserts are predicted to expand, with the Sahara reaching right into central Europe.

Glacial retreat will dry Europe's rivers from the Danube to the Rhine, with similar effects in mountainous regions including the Peruvian Andes, and the Himalayan and Karakoram ranges, which as result will no longer supply water to Afghanistan, Pakistan, China, Bhutan, India and Vietnam.

Along with the exhaustion of aquifers, all this will lead to two latitudinal dry belts where human habitation will be impossible, say Syukuro Manabe of Tokyo University, Japan, and his colleagues. One will stretch across Central America, southern Europe and north Africa, south Asia and Japan; while the other will cover Madagascar, southern Africa, the Pacific Islands, and most of Australia and Chile (Climatic Change, vol 64, p 59).

In order to survive, humans may need to do something radical: rethink our society not along geopolitical lines but in terms of resource distribution. "We are locked into a mindset that each country has to be self-sustaining in food, water and energy," Cox says. "We need to look at the world afresh and see it in terms of where the resources are, and then plan the population, food and energy production around that. If aliens came to Earth they'd think it was crazy that some of the driest parts of the world, such as Pakistan and Egypt, grow some of the thirstiest crops for export, like rice."

Taking politics out of the equation may seem unrealistic: conflict over resources will likely increase significantly as the climate changes, and political leaders are not going to give up their power just like that. Nevertheless, overcoming political hurdles may be our only chance. "It's too late for us," says President Anote Tong of Kiribati, a submerging island state in Micronesia, which has a programme of gradual migration to Australia and New Zealand. "We need to do something drastic to remove national boundaries."

Imagine, for the purposes of this thought experiment, that we have 9 billion people to save - 2 billion more than live on the planet today. A wholescale relocation of the world's population according to the geography of resources means abandoning huge tracts of the globe and moving people to where the water is. Most climate models agree that the far north and south of the planet will see an increase in precipitation. In the northern hemisphere this includes Canada, Siberia, Scandinavia and newly ice-free parts of Greenland; in the southern hemisphere, Patagonia, Tasmania and the far north of Australia, New Zealand and perhaps newly ice-free parts of the western Antarctic coast.

If we allow 20 square metres of space per person - more than double the minimum habitable space allowed per person under English planning regulations - 9 million people would need 18,000 square kilometres of land to live on. The area of Canada alone is 9.1 million square kilometres and, combined with all the other high-latitude areas, such as Alaska, Britain, Russia and Scandinavia, there should be plenty of room for everyone, even with the effects of sea-level rise.

These precious lands with access to water would be valuable food-growing areas, as well as the last oases for many species, so people would be need to be housed in compact, high-rise cities. Living this closely together will bring problems of its own. Disease could easily spread through the crowded population so early warning systems will be needed to monitor any outbreaks.

Since water will be scarce, food production will need to be far more efficient. Hot growing seasons will be more common, meaning that livestock will become increasingly stressed, and crop growing seasons will shorten, according to David Battisti of the University of Washington in Seattle and his colleagues (Science, vol 323, p 240). We will need heat and drought-tolerant crop varieties, they suggest. Rice may have to give way to less thirsty staples such as potatoes.

This will probably be a mostly vegetarian world: the warming, acidic seas will be largely devoid of fish, thanks to a crash in plankton that use calcium carbonate to build shells. Molluscs, also unable to grow their carbonate shells, will become extinct. Poultry may be viable on the edges of farmland but there will simply be no room to graze cattle. Livestock may be restricted to hardy animals such as goats, which can survive on desert scrub. One consequence of the lack of cattle will be a need for alternative fertilisers - processed human waste is a possibility. Synthetic meats and other foods could meet some of the demand. Cultivation of algal mats, and crops grown on floating platforms and in marshland could also contribute.

If we use land, energy, food and water efficiently, our population has a chance of surviving - provided we have the time and willingness to adapt. "I'm optimistic that we can reduce catastrophic loss of life and reduce the most severe impacts," says Peter Falloon, a climate impacts specialist at the Hadley Centre. "I think there's enough knowledge now, and if it's used sensibly we could adapt to the climate change that we're already committed to for the next 30 or 40 years."

This really would be survival, though, in a world that few would choose to live. Large chunks of Earth's biodiversity would vanish because species won't be able to adapt quickly enough to higher temperatures, lack of water, loss of ecosystems, or because starving humans had eaten them. "You can forget lions and tigers: if it moves we'll have eaten it," says Lovelock. "People will be desperate."

Still, if we should find ourselves in such a state you can bet we'd be working our hardest to get that green and pleasant world back, and to prevent matters getting even worse. This would involve trying to limit the effects climate feedback mechanisms and restoring natural carbon sequestration by reinstating tropical forest. "Our survival would very much depend on how well we were able to draw down CO2 to 280 parts per million," Schellnhuber says.

Even so, the most terrifying prospect of a world warmed by 4 °C is that it may be impossible to return to anything resembling today's varied and abundant Earth. Worse still, most models agree that once there is a 4 °C rise, the juggernaut of warming will be unstoppable, and humanity's fate more uncertain than ever.

"I would like to be optimistic that we'll survive, but I've got no good reason to be," says Crutzen. "In order to be safe, we would have to reduce our carbon emissions by 70 per cent by 2015. We are currently putting in 3 per cent more each year." Read on

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Ord River - Western Australia


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Solar Installation Companies wait for Government Cash in Western Australia

The government's decision to restrict the $10,000 solar rebate to households with incomes of less than $100,000 has sparked massive demand for the installation of solar energy systems. Unfortunately, the government has been slow to pass the rebates to the installation companies and this is hurting business in this important area.

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Dimond Gorge Dam for the Fitzroy River

Jack Fletcher came to Western Australia in 1965 with the grand ambition of turning the Fitzroy River Valley in the Kimberley into a foodbowl that could sustain the nation through any drought. The true value of the Fitzroy river is in the huge volumes of available fresh water. When the Fitzroy is in peak flow, the equivalent of the contents of the Sydney harbour flow into the ocean every nine minutes. As Jack Fletcher loves to say "World population pressures will not let the Kimberley remain a park".

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