The innovators: looped water system for Earth friendly shower

February 23rd, 2016 by admin No comments »

Powered by article titled “The innovators: looped water system for Earth friendly shower” was written by Shane Hickey, for The Guardian on Sunday 21st February 2016 09.00 UTC

When he was working on an academic project with Nasa, Mehrdad Mahdjoubi, a Swedish industrial designer, realised there could be parallels between sustainability in space and on Earth. The extremes of space required that the vital resource of water be used in the most efficient way possible. Water should also be used like this in the home, he thought.

Inspired by those experiences with the space agency, Mahdjoubi created a shower system that reuses the same water in a circular loop, while two filters take out impurities as it circulates.

This Shower of the Future , from his company, Orbital Systems, can operate on five litres of water. The water constantly circulates for 10 minutes or so – the time of an average shower – in turn saving also on energy.

“The reason that we make it work sustainably in space is because we have to do it,” the Swedish industrial designer said. “What if we try the same things on Earth … [if] the house was like a space capsule, how would we go about it? The most sustainable lifestyle is the one that we have in the most extreme environments and that may be in space or in a submarine where you actually have no choice but to really care for the resources that you have.”

Mahdjoubi said that while savings have been made in how water is used in toilets and washing machines, the same was not true of the shower. “Without changing the technology, we seem to just heat up water and put it down the drain,” he said. In Sweden, where the company is based, the average shower emits 15 litres of water a minute. During a 10-minute shower this amounts to 150 litres, he said.

The Orbital Systems shower starts with five litres of water and adds more if some is splashed out or is taken out of the system by the filters.

Water is first pumped through two filters, one which takes out larger particles such as sand, skin and dust and then a finer filter to extract bacteria, viruses and blood.

From there the water travels through a heater that moderates the temperature, which is set by a wheel control the user can change from hot to cold. The water then exits the shower nozzle as normal.

But when the water trickles through the drain it goes through a sensor which analyses it. If it is contaminated, the sensor recognises this and replaces the water.

The company says water flows at a rate of 20 litres a minute, compared to conventional showers, which typically range between seven and 12 litres a minute.

The shower takes in water from the mains until it senses that there is enough to go in a constant loop, said Mahdjoubi. “Even though the water is clean we would always flush it out before the next user. Comparing [it] to a hot tub where you sit in your own dirt for however many minutes, this is way more hygienic. When you stand in front of one of these showers you completely forget that the water is being recycled. It is the most unremarkable thing.”

The shower unit can be fitted as either an integrated system in the floor or as a standalone cabin with glass walls. The first units were delivered in December with most of the sales to commerical customers such as gyms, residential homes, swimming pools and the Swedish military. Nursing homes and hospitals have also bought them, said Mahdjoubi, because of the filter system.

“Not because they really want to save a lot of water but because you can guarantee that the water is clean and free from Legionnaires’ disease because it is always being filtered.”

How much money is saved depends on the cost of water and energy and how often the shower is used, he said. The company claims that a UK home can save £1,100 a year assuming there are four showers taken a day lasting nine minutes each.

Offsetting this is the price of the shower. The cheaper of the two residential units, where the shower is integrated into the floor of the bathroom, costs £3,300 while the standalone cabin costs £4,100.

As sales increase, Mahdjoubi said, the price would fall to less than £2,000 in three years. “I would say that we are steadily going down in price but we have to start where the market can afford it, that is why we have this premium and commercial focus we have right now,” he said.

A family would need to spend an average of about £110 every year replacing the purification capsules.

So far hundreds of the showers had been sold, said Mahdjoubi, and there had been particular interest from Denmark (location of one of the highest water prices in the EU) and from California, where there had been persistent droughts over recent years. © Guardian News & Media Limited 2010

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The Guardian view on COP 21 climate talks: saving the planet in a fracturing world

December 14th, 2015 by admin No comments »

Powered by article titled “The Guardian view on COP 21 climate talks: saving the planet in a fracturing world” was written by Editorial, for The Guardian on Sunday 13th December 2015 20.16 UTC

In the late 20th century, those who stood against globalisation were charged with swimming against an unstoppable tide, caricatured as “Stop the world, I wanna get off!” But in the 21st century, history is running with the anti-globalisers. World trade talks have gone nowhere, immigration controls have shot up the agenda, and two post-national EU projects – the euro and Schengen – are under strain. Figures as diverse as Donald Trump, Nicola Sturgeon and Marine Le Pen – who failed to convert a remarkable first-round victory in French regional elections into any outright wins – are all peddling one form of nationalism or another. Rumours of the death of the nation state, then, have proved exaggerated: globalisation is spinning into reverse.

Looking back on the future as it appeared in the 1990s – as a technocratic, transnational order – a democratic push-back was surely inevitable, in some senses even desirable. But when problems from the overuse of antibiotics to terrorism refuse to respect national borders, the retreat from the dream of global governance has some frightening consequences, especially in connection with climate change, the archetypal global problem. Saving the planet in a fracturing world is a daunting challenge indeed.

The Paris COP 21 talks surpassed expectations in rising to it, demonstrating just how much can be achieved by determined diplomacy, even while working within the unbending red lines of jealously sovereign states. A formal treaty was precluded because it would hand a veto to the intransigent legislators of Capitol Hill, while also offending the sensibilities of Delhi and Beijing. Fortunately, it proved possible to work within the fudged alternative framework of a “legally binding instrument”. Everyone offered up voluntary emission targets, and agreed, too, to a five-yearly review of these. While the targets on the table are not yet adequate to avoid the disaster of more than 2C of warming, the surprise inclusion of an aspiration to cap temperature rises at 1.5C signals a shared understanding that the targets will have to be tightened at each successive review. The destructive standoff between developing and developed countries that doomed Copenhagen six years ago has been transcended: the big developing economies, which now produce the bulk of emissions, are no longer pretending that they can delay doing anything until the rich world is perfectly green; at the same time the rich world is effectively accepting that it will have to help shoulder the “loss and damage” costs inflicted by the long legacy of western pollution.

This is, on the face of it, a rare and heartening case of disparate peoples being led to a common conclusion by evidence and reason, but serendipity played its part too. It happens, for example, that in 2015 there is a progressive US president who never has another election to win. It happens, too, that China is the midst of replacing filthy old power stations, which is already curbing its emissions growth, making it less painful than before for Beijing to engage. Indeed, the latest global CO2 data registers a striking levelling off, raising the tantalising possibility that technological progress could be entering a phase where the cast-iron link between emissions and growth begins to rust. If that pattern were borne out in future years, future climate negotiations could get smoother on every front. Then there is the great oil price crash, which facilitates a more fruitful discussion on fossil fuels, by making it much more imaginable to keep it in the ground.

One anxiety is whether this fortuitous alignment of political and economic stars will remain, as nations move from making promises, towards real action. Paris cannot guarantees success, but it does encourage hope – and particularly if Ms Le Pen’s chauvinist form of nationalism can be seen off. The Front National dabbled in greenwash last year, but its insistence on an ecology defined by “patriotism and the national interest”, and its instinctive suspicion of a multilateral UN approach is precisely the attitude which could thwart the translation of impressive COP 21 words into deeds.

Paris has given the world new hope in the possibilities of pragmatic diplomacy, at a time when France’s own politics illustrate the difficulties of assuming solidarity extends beyond national borders. If the answer to climate change is going to have to be found in continuous haggling between 200 nations, then success is also going to depend on winning the argument against narrow nationalism in every corner of the world. © Guardian News & Media Limited 2010

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Australian homes among first to get Tesla’s Powerwall solar-energy battery

September 27th, 2015 by admin No comments »

Powered by article titled “Australian homes among first to get Tesla’s Powerwall solar-energy battery” was written by Oliver Milman, for on Friday 18th September 2015 03.08 UTC

Australia will be one of the first countries in the world to get Tesla’s vaunted Powerwall battery storage system, as several other companies scramble to sign up Australia’s growing number of households with solar rooftops.

US firm Tesla said that its 7kWH home energy storage units would be available by the end of the year in Australia, ahead of previous predictions it would arrive in 2016.

The Powerwall is a unit that sits on an interior wall. It has a lithium-ion battery, used to store energy created by solar panels on the household roof.

Tesla, which also makes electric cars, is the most high-profile company in the emerging battery storage industry – an area that is seen as crucial in making intermittent renewable energy such as solar and wind into a reliable accompaniment, or even alternative, to fossil fuel-fired power grids.

Canberra-based firm Reposit Power, which enables people to directly buy and sell their stored electricity, has partnered with Tesla for Powerwall’s launch.

There are a handful of existing Australian alternatives to the Powerwall, such as Redflow, headed by Simon Hackett, who founded Internode. Hackett also sits on the board of the NBN.

“Tesla’s arrival is important because they have such a high profile,” said Prof Anthony Vassallo, a sustainable energy expert at the University of Sydney. “The Tesla product isn’t unique by any stretch, but it’s the Apple brand of the battery storage industry, they have the sex appeal that others don’t.

“Solar PV and batteries are such a wonderful combination. Australians have demonstrated they are quite happy to purchase PV systems, Australia has a great solar resource and to have a battery to store that makes a lot of sense.

“There are packages of PV and batteries being offered by retailers and, as prices come down, we’ll see a lot more of this. Tesla’s price point in the US – of about US,000 (,173) – would be competitive here, it will sharpen up the players to make more efficient and higher-performing systems.”

Vassallo pointed out that the technology still has some way to improve – a 7kWH system will store little more than an hour’s electricity generated by a typical 5kWH solar system, meaning that some people may have to have several Powerwall, or equivalent, systems on their walls.

“I’d be wary of claims that people can go entirely off the grid, but it’s a first step,” he said. “Australia has high electrity prices, and once the price is acceptable I think the take-up will be strong.”

There are more than 1.3m households in Australia with rooftop solar, with the number increasing rapidly as the price of PV systems tumble. State-based tariffs have been gradually withdrawn across the country, while the federal government announced in July that it would instruct the Clean Energy Finance Corporation to favour large-scale solar over rooftop solar in its funding decisions.

Labor has set a target of Australia generating 50% of its electrity from renewable energy by 2030, although has provided little detail on how this would be achieved. The prime minister, Malcolm Turnbull, said the goal was “reckless” as the cost of it has not been quantified.

Vassallo said, “Australia could reach that 50% target, it just requires well-designed policies and markets that allow a transition from centralised, large-scale fossil fuels to efficient but variable renewables.

“Storage is a key part to make that happen. The beauty of renewables is that once you’ve managed the capital cost, there is no fuel cost. There’s an energy security there you don’t get with fossil fuels.” © Guardian News & Media Limited 2010

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Climate-smart cities could save the world $22tn, say economists

September 9th, 2015 by admin No comments »

Powered by article titled “Climate-smart cities could save the world tn, say economists” was written by Suzanne Goldenberg, for on Tuesday 8th September 2015 04.00 UTC

Putting cities on a course of smart growth – with expanded public transit, energy-saving buildings, and better waste management – could save as much as tn and avoid the equivalent in carbon pollution of India’s entire annual output of greenhouse gasses, according to leading economists.

The Global Commission on Economy and Climate, an independent initiative by former finance ministers and leading research institutions from Britain and six other countries, found climate-smart cities would spur economic growth and a better quality of life – at the same time as cutting carbon pollution.

If national governments back those efforts, the savings on transport, buildings, and waste disposal could reach up to tn (£14tn) by 2050, the researchers found. By 2030, those efforts would avoid the equivalent of 3.7 gigatonnes a year – more than India’s current greenhouse gas emissions, the report found.

The finding upends the notion that it is too expensive to do anything about climate change – or that such efforts would make little real difference. Not true, said the researchers.

“There is now increasing evidence that emissions can decrease while economies continue to grow,” said Seth Schultz, a researcher for the C40 Cities Climate Leadership Group who consulted on the report.

“Becoming more sustainable and putting the world – specifically cities – on a low carbon trajectory is actually feasible and good economics.”

The report called on the world’s leading cities to commit to low carbon development strategies by 2020.

The findings, were released as the United Nations and environmental groups try to spur greater action on climate change ahead of critical negotiations in Paris at the end of the year.

The Paris meeting is seen as a linchpin of efforts to hold warming to 2C by moving the global economy away from fossil fuels to cleaner sources of energy.

The UN concedes the climate commitments to date fall far short of the 2C goal. But the strategies outlined in the report – some of which are being put into place already – would on their own make up about 20% of that gap, said Amanda Eichel of Bloomberg Philanthropies who also consulted on the report.

Two-thirds of the world’s population will live in urban areas by 2050, with Africa’s urban population growing at twice the rate of the rest of the world.

The right choices now, in terms of long-term planning for urban development and transport, could improve people’s lives and fight climate change, the report found.

Investing in public transport would make the biggest immediate difference, the report found. Air pollution is already choking the sprawling cities of India and China. Traffic jams and accidents are taking a toll on the local economy in cities from Cairo to Sao Paulo.

But building bus lanes, such as those rolling out in Buenos Aires, could cut commuting time by up to 50%, the report said.

Green building standards could cut electricity use, reduce heat island effects, and reduce demand for water. In waste management, biogas from waste could be harnessed as fuel to provide electricity to communities, as was already being done by Lagos in Nigeria and other cities. © Guardian News & Media Limited 2010

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Has the EU’s carbon trading system made business greener?

July 21st, 2015 by admin No comments »

Powered by article titled “Has the EU’s carbon trading system made business greener?” was written by Jill Duggan, for on Wednesday 15th July 2015 15.15 UTC

The EU is celebrating 10 years of the world’s largest carbon trading system this year by looking at new reforms to keep it on track. The emissions trading scheme (ETS), which covers half of Europe’s CO2 emissions by limiting the number of carbon permits available to energy generators and industry, has been dogged by low prices and oversupply of allowances.

The problems are largely ones of success – carbon emissions are lower than anticipated. But much of the oversupply was caused by the recession in Europe, so has the trading system been a waste of time or has it changed business attitudes and operations?

To answer these questions the Prince of Wales’ Corporate Leaders Group commissioned a report, 10 years of Carbon Pricing in Europe – a business perspective, which was released last week. The report is based on interviews with a small number of companies from a variety of sectors that are mandated into the ETS to see what impact it has had on them.

For some, the responses were pretty much to be expected. EDF and Shell have long been advocates of the carbon market and higher prices. Energy companies need the price to justify the right investment decisions at the right time – and many of them are able to pass on the cost of carbon allowances to their consumers – so they would be in favour of a high carbon price.

Although they profess the importance of the carbon market, it is clear that other policies, such as those promoting renewables or nuclear energy, have had more impact.

Carbon trading driving emission cuts

But then there are the energy intensives. Often vulnerable to international competition and with limited options to reduce their CO2 emissions, these industries generally have not been enthusiastic advocates of the carbon price. But here the European carbon market does seem to have had a genuine impact. Steel company ArcelorMittel acknowledged the importance of monitoring and reporting emissions to manage them.

Tata Steel Europe said that even in the depths of the recession some of its facilities were taking steps that would have previously been unacceptable or impossible in order to stay afloat, because reducing emissions is synonymous with efficiency. To the same effect, cement company Italcementi uses CO2 intensity as an indicator of efficiency as it “combines most of the key levers to industrial excellence”.

It seems unlikely these companies would have got this far without the ETS.

Next, we should consider the industries that are within the ETS but for which energy is not such a significant cost or where there are other options. What is interesting here is how the most advanced companies have moved beyond compliance to more interesting and creative ways of cutting emissions.

There are plenty of examples of companies using their waste heat or buying heat from their neighbours, thus going the extra mile to improve efficiency. The bottling company O-I Group uses waste heat to pre-heat raw materials and to heat the floor in their plant. Others have created new business models that have provided a lucrative income stream from offering consultancy advice to others. Here the ETS has provided a valuable focus on carbon and underwritten the improvements made.

Finally, there are those companies that probably would not have gone beyond compliance if they had not had leaders with vision. Where senior managers decide to take carbon seriously there can be huge benefits, even where energy is a small proportion of total costs.

Jaguar Land Rover and GlaxoSmithKline have directed new resources to cutting carbon with astonishing success. This has been crowned by a reduced carbon liability. Clearly in these companies the ETS alone has not driven this transformation, but the senior management teams would not have had this on the agenda without the carbon price being discussed at board level. It is noteworthy that these businesses instigated action in 2007 and 2008 when the allowance price was relatively stable in the €20-€25 range.

What needs to happen next? Europe is embarking on reform of the ETS now. Clearly getting prices back up to the lofty levels of 2007 would help but, ironically, the companies that have focused on carbon have found the low hanging fruit of cheap emissions reductions to be almost limitless, which will make it a bigger struggle to raise the price.

Do we need a higher price then? Yes. To tackle the challenging industries that will need technological breakthroughs we will need higher carbon prices to incentivise more reductions and to fund innovation. © Guardian News & Media Limited 2010

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The self-healing concrete that can fix its own cracks

June 29th, 2015 by admin No comments »

Powered by article titled “The self-healing concrete that can fix its own cracks” was written by Rosie Spinks, for on Monday 29th June 2015 06.00 UTC

Of all the carbon emitters that surround us every day it’s easy to overlook one of the most ubiquitous: concrete.

The material that builds our buildings, paves our roads and spans our bridges is the most widely produced and consumed material on earth apart from water, according to a WBCSD report. By 2030, urban growth in China and India will place global cement output at 5bn metric tons per year, with current output already responsible for 8% of the global emissions total, according to a WWF report.

Although its environmental impact is far from benign, concrete – defined as the mixture of aggregates, water and the hydraulic powder material known as cement – is incredibly useful and widely applicable. Thanks to its durability, easily-sourced raw materials and thermal resistance, it is unlikely that an alternative building material will replace it on a large scale any time soon.

Hendrik Jonkers, a microbiologist at Delft University and a finalist at the recent 10th annual European Inventor Awards, has a plan to increase the lifespan of concrete. His innovation, which embeds self-activating limestone-producing bacteria into building material, is designed to decrease the amount of new concrete produced and lower maintenance and repair costs for city officials, building owners and homeowners.

Jonkers’ self-healing concrete marries two fields: civil engineering and marine biology.

“One of my colleagues, a civil engineer with no knowledge of microbiology, read about applying limestone-producing bacteria to monuments [to preserve them],” Jonkers said. “He asked me: ‘Is it possible for buildings?’ Then my task was to find the right bacteria that could not only survive being mixed into concrete, but also actively start a self healing process.”

When it comes to Jonkers’ concrete, water is both the problem and the catalyst that activates the solution. Bacteria (Bacillus pseudofirmus or Sporosarcina pasteurii) are mixed and distributed evenly throughout the concrete, but can lie dormant for up to 200 years as long as there is food in the form of particles. It is only with the arrival of concrete’s nemesis itself – rainwater or atmospheric moisture seeping into cracks – that the bacteria starts to produce the limestone that eventually repairs the cracks. It’s a similar process to that carried out by osteoplast cells in our body which make bones.

Healing these cracks the old-fashioned way is no small expense. According to HealCON, the project working on the self-healing concrete, annual maintenance cost for bridges, tunnels and other essential infrastructure in the EU reaches €6bn (£4.2bn) a year.

The invention comes in three forms: a spray that can be applied to existing construction for small cracks that need repairing, a repair mortar for structural repair of large damage and self-healing concrete itself, which can be mixed in quantities as needed. While the spray is commercially available, the latter two are currently in field tests. One application that Jonkers predicts will be widely useful for urban planners is highway infrastructure, where the use of de-icing salts is notoriously detrimental to concrete-paved roads.

Encouraging as it sounds, Jonkers’ self-healing concrete can’t cure very wide cracks or potholes on roads just yet; the technology is currently able to mend cracks up to 0.8mm wide. And while making better concrete is a more feasible approach to sustainable building than shifting to an entirely new building material, that doesn’t mean the innovation is a sure bet. The current cost would be prohibitive for many. A standard-priced cubic meter of concrete is €70, according to Jonkers, while the self-healing variety would cost €100.

John Alker, director of policy at the UK Green Building Council, says the success of any new green infrastructure technology relies on innovators like Jonkers being able to demonstrate the particular benefit of a product, whether that’s around cost or enabling a client to meet environmental targets.

“We’ve seen a lot of innovation around concrete as it is a highly impactful product in terms of the energy that goes into producing it and it’s simultaneously a very important construction product globally,” Alker said. But persuading the construction industry to change its behaviour will be tough, he says. “It comes down to innovative clients and developers being willing to experiment with their building and try and test these materials and prove a track record before others will follow.”

Though Jonkers is aware of the challenges of reaching wide adoption of the material, he points out that in particularly vulnerable environments – such as coastal communities or tropical regions that are increasingly experiencing extreme rainfall – some are already seeing the cost-benefit analysis of using this technology from the outset.

“We did a project in Ecuador where we made a concrete canal and irrigation system with self-healing concrete,” Jonkers said. “We are doing tests all over the world in developing countries where they realise that though this is more expensive than current tech, they see the profit because they will have to avoid repair down the line.” © Guardian News & Media Limited 2010

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The streets were paved with algae: a greener material?

June 11th, 2015 by admin No comments »

Powered by article titled “The streets were paved with algae: a greener material?” was written by Rich McEachran, for on Monday 8th June 2015 12.38 UTC

The process of surfacing a road isn’t complicated. Layers of asphalt, which is composed mostly of bitumen (a byproduct of crude oil distillation), are poured over an aggregate of crushed stone and sand; the asphalt acts as a glue, binding the mixture together to form asphalt concrete.

Maintaining the roads, however, is a costly job. According to the Asphalt Industry Alliance it would cost more than £12bn to restore all road networks in England alone to a reasonable condition.

Simon Hesp, a professor and chemical engineer at Queen’s University in Ontario, believes standard industry asphalt is not sustainable. “The problem with the composition is that it’s poorly controlled … it uses materials with poor performances,” he says. Hesp says the presence of certain oil residues lowers the quality of the concrete and is a key reason why roads are failing and many potholes need to be filled and cracks fixed.

But there’s not just a maintenance cost. Asphalt, dependent as it is on the oil industry, is resource- and energy-intensive, which is why the race is on to develop a greener alternative.

In Sydney an experiment is under way using printer toner waste blended with recycled oil to produce an environmentally friendly asphalt. And in the past few years there have been studies into the development of non-petroleum bioasphalts.

At Washington State University researchers developed asphalt from cooking oil, and last year academics at Wageningen University in the Netherlands found that lignin – a natural substance found in plants and trees – is another suitable replacement for crude oil bitumen. Other investigations have looked into the use of soybean and canola oil (rapeseed oil) and coffee grounds.

The WSU research, led by Haifang Wen and published at the end of 2013, concluded that the introduction of cooking oil can increase bioasphalt’s resistance to cracking . Wenn also claims it’s possible that, if commercialised, such bioasphalts could cost much less per tonne. The price of standard asphalt can fluctuate wildly as it’s dependent on the price of oil.

Hesp isn’t convinced that cooking oil is the way forward. He says, like petroleum, over time it will cause roads to fail because of weak bonds.

Bruno Bujoli, director of research at CNRS (Centre National de la Recherche Scientifique), agrees that the use of cooking oil “chemically modified to reach appropriate mechanical properties” could significantly affect quality. He also sounds a note of caution about food security, saying that asphalt based on vegetable oils could, if scaled up, affect food stocks

Bujoli recently played a key role in developing a bioasphalt from microalgae. It uses a process known as hydrothermal liquefaction, which is used to convert waste biomass, including wood and sewage, into biocrude oil. The chemical composition of the microalgae bioasphalt differs from petroleum-derived asphalt, but initial tests have concluded that it also bears similar viscous properties and can bind aggregates together efficiently, as well as being able to cope with loads such as vehicles.

How it will perform over time is yet to be determined. The findings were published in April.

Green roads

Bujoli suggests that microalgae – also known for its use in the production of cosmetic and textile dyes – is a greener and more appropriate solution than agricultural oils. The latter, he says, should be kept for food production.

“The benefits of microalgae over other sources include low competition for arable land, high per hectare biomass yields and large harvesting turnovers. There is also the opportunity to recycle wastewater and carbon dioxide as a way of contributing to sustainable development,” he adds.

It’s a neat idea, with an admirable green mission behind it, but how much of an impact can it really have? Technology such as this is still in its infancy, suggests Heather Dylla, director of sustainable engineering at the National Asphalt Pavement Association, a US trade organisation for the paving industry.

“A lot of interesting work is being done in this area, looking at everything from algae, to swine waste, to byproducts from paper making. It’s worth exploring these alternatives, but we need to be sure they provide equivalent or improved engineering properties. We need to understand how they affect the recyclability of asphalt pavement mixtures,” she says.

She points to the “unique” advantage of asphalt when it comes to recycling. “Not only are the aggregates, which make up about 95% of [asphalt concrete], put back to use, but the bitumen can also be reactivated and used again as the glue that holds a pavement together.”

Microalgae could yet put the paving industry on the road to a greener future. For now though, there are plenty of challenges – from price to scalability – for Bujoli and his team to address if the bioasphalt is to be commercialised.

“This is our research focus for the near future. Our current laboratory equipment works in a batch mode,” explains Bujoli. “Scaling up the process will require the design of a large-volume reactor that can operate under continuous flow conditions.” © Guardian News & Media Limited 2010

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Business leaders prepare for limited UN climate deal in Paris

May 22nd, 2015 by admin No comments »

Powered by article titled “Business leaders prepare for limited UN climate deal in Paris” was written by Tom Levitt, for on Thursday 21st May 2015 21.04 UTC

Business leaders are preparing for a limited agreement on reducing carbon emissions at the crunch UN summit in Paris later this year, despite growing support from them for carbon pricing and a commitment to cut emissions by enough to avoid more than 2C of global warming.

More than 1,000 business leaders, including the CEOs of Carrefour, Statoil, Total and Unilever, turned up at a business summit on tackling climate change in Paris this week in response to calls from the UN for the private sector to take a more active role in tackling climate change.

They called on policymakers to agree on carbon pricing mechanisms, closer collaboration between business and government on climate policies and a joint public and private sector fund for investing in low-carbon technology, particularly in developing countries.

The meeting comes as UN negotiators are trying to pull together enough emissions reduction commitments to prevent more than 2C of global warming, the level political leaders agreed in 2009 as likely to prevent the worst effects of climate change. The final commitments are needed ahead of the summit of world leaders in December this year.

Business claims frustration

However, business leaders did not expect the necessary emissions reductions or their policy requests to be finalised in December.

“We have to be pragmatic,” French oil group Total CEO Patrick Pouyanné told the Guardian. “If we take the sum of commitments made by countries then I am afraid we will not be on the 2C trajectory. There will be a gap.

“But what is important from the UN talks in December is to have a convergence of companies on the one side and governments on the other. At least some commitments by governments and businesses, and a mechanism in place to improve it,” he said, adding that he is in favour of a carbon pricing principle.

A failure to bring enough emission cut commitments to put the world on track for avoiding global warming of more than 2C is likely to frustrate the majority of businesses, says the Carbon Disclosure Project (CDP), with more than 30 companies including Ford Motor Company, Unilever, Nissan and H&M having already pledged to set long-term, science-based climate targets. The targets will match the scale needed to meet the goal of limiting global temperature increases to 2C.

“A small minority of companies may be relieved to continue on a business as usual pathway in the short term, but it would lead to a build-up of systemic risk in the economy,” says CDP’s CEO Paul Simpson. “The vast majority of companies want to see a managed transition to a low-carbon future and not costly, last-minute regulation or climate chaos.”

French companies were represented in large numbers at this week’s summit, with Renault saying it would be “totally stupid” not to have the right regulations, framework and price signals in place after the UN talks. “We have made the investments and have the technology ready to implement on a larger scale,” said Claire Martin, director for sustainable development at Renault.

Private sector could help meet targets

While some have doubted the sincerity of energy-intensive businesses in particular in tackling climate change, Unilever CEO Paul Polman suggests the private sector could help close the shortfall in emission commitments made by governments. “It is very likely that all the agreements coming in will not add up to what we need to stay below 2C. [Those commitments] will be around 40% of that in reality. That is why we are mobilising the private sector. If we work together we can close that gap.”

However, Claus Stig Pedersen head of corporate sustainability at Novozymes, said the past five years had shown business could not tackle climate change without a strong political deal.

“We had this reaction after the UN talks in Copenhagen in 2009 of disappointment with politicians and I was part of a movement that said okay, let’s just do it ourselves. A lot of business jumped into this space and took some big steps forward, but after some years business in general realised that we couldn’t do this alone.

“There is no way we can do this without partnering with politicians and making agreements going forward. So if we should end up with a Paris failure, like we’ve had before, then I do think we’ve learnt we can’t do it alone. We have all the solutions needed, it’s just about applying it. And regulation, a carbon price and ambitious goals from the UN climate talks will drive that faster,” he added.

Join the community of sustainability professionals and experts. Become a GSB member to get more stories like this direct to your inbox. © Guardian News & Media Limited 2010

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The UK company turning coffee waste into furniture

May 7th, 2015 by admin No comments »

Powered by article titled “The UK company turning coffee waste into furniture” was written by Josephine Moulds, for on Tuesday 5th May 2015 15.06 UTC

Britain was falling in love with coffee just as Adam Fairweather was exploring ideas for new products and materials. Ten years ago, Starbucks stores were opening on every corner, followed by the burgeoning industry of artisan coffee roasters.

Fairweather, a designer by training and expert in recycling technologies and materials development, now develops materials from coffee grounds and uses them to design products including furniture, jewellery and coffee machines.

A poll of 2,000 Britons by Douwe Egberts in 2012 found 69% spent between £1 and £5 in coffee shops five days a week. “We use coffee as a moment to take a break, it’s a luxury product,” says Fairweather. “The idea that it already had this high value but we only use a little of it, that was interesting because I felt that there was a way of tapping into this perceived high value the product has intrinsically.”

On average, we use just 18% to 22% of the coffee bean when we make a cup of coffee but Fairweather says that coffee waste is not “the biggest problem”. “There are already massive recycling programmes in the UK that manage organic food waste very well. My interest is that we can use materials that have a perceived value to them, to communicate and get people excited about the idea of sustainability and social change and environmental management.”

Google seats coffee material
An example of Re-Worked furniture: easy chair and unity coffee table made with Çurface boards containing 100% recycled content and ash wood. Photograph: Re-Worked

Fairweather first tackled coffee waste by helping to develop the Greencup scheme, which provides offices around the UK with Fairtrade coffee and then collects their waste coffee to turn it into fertiliser. His new venture, Re-Worked, works with Greencup, so he has a ready supply of waste coffee grounds and a list of potential clients who may be open to the idea of other products made from their coffee waste.

Google uses Greencup’s service and has bought designer furniture from Re-Worked, created with a hybrid material made up of 60% used coffee grounds. “They’re all very quick sales,” says Fairweather. “It’s five or six conversations rather than hundreds, because we already have a relationship with the catering facilities management.”

Re-Worked has also teamed up with Sanremo, which uses a material made of 70% coffee grounds for the decorative housing of its Verde coffee machine. Fairweather says they have sold 300-400 of these each year since it was launched in 2013 and they are currently being installed in Wyevale garden centres around the country. High-end jeweller Rosalie McMillan makes use of another of Re-Worked’s materials, combining it with gold and sterling silver for her Java Ore collection.

Scaling up for profit

Re-Worked is a non-profit and Fairweather says the quest for funding has been one of his biggest challenges. “I’m really under-resourced. Because it’s been pioneering work, it’s made it quite hard to get the buy-in from people. We’ve never had huge amounts of wealth in the background to make things happen quickly.”

Re-Worked does generate revenue from trading, which it invests back into the business but Fairweather says the organisation still relies on grants. “In all honesty it’s not been massively profitable. The way we sustain ourselves is by getting government support.” This funds ongoing research into new materials and better production processes.

Fairweather says the process of making materials from coffee grounds would be economically viable if Re-Worked were to scale up. “Doing the life-cycle analysis of materials, is a very good way of seeing whether or not something stands up. If it’s more environmentally friendly, generally it’s more economically-friendly, because it means that you’re using less of everything.”

Java Rock Bangles
Java rock wrist bangle made by Rosalie McMillan using a custom Çurface material containing 70% recycled content. Photograph: Rosalie McMillan

Fairweather only wants to scale up, however, if he can maintain true to the original aim. He says the company explored the option of developing a low-value product, making fuel pellets out of coffee, to act as a staple to keep the business running. That hit a stumbling block when he realised they would have to take waste coffee from other sources and not just Greencup.

“It’s about promoting the idea of a circular business, if we started to offer the service to Nero, then we add value to their business, but we don’t promote the idea of this circular business model that excites people. It just becomes a service that people use.”

He admits he is not particularly commercially minded and that is, perhaps, why Re-Worked is not a million-pound business. “I’m not a marketer I’m more of an inventor. I like to invent the stuff. I like to work problems out.”

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Tesla’s new low-cost battery: ‘the missing piece’ in sustainable energy?

May 3rd, 2015 by admin No comments »

Powered by article titled “Tesla’s new low-cost battery: ‘the missing piece’ in sustainable energy?” was written by Sam Thielman in New York, for on Friday 1st May 2015 12.12 UTC

Will the world become battery-powered? That’s certainly the ambition of Elon Musk, the PayPal billionaire turned would-be space explorer and electric car baron.

On Thursday night, Musk unveiled what he called “the missing piece” in sustainable energy: a range of batteries that can be used in homes and businesses to store power from wind or solar or take advantage of cheap electricity to charge up overnight and then be used in peak hours.

Two billion Powerpacks – as the batteries are called – could store enough electricity to meet the entire world’s needs.

“That may seem like an insane number,” Musk said. “We’re talking about trying to change the fundamental energy infrastructure of the world.”

The first place to feel the battery charge will be Nevada. Next year, Musk’s Tesla Motors is set to start operating a power-storage-device “gigafactory” across nearly a thousand acres of Nevada real estate. It’s required to contribute .5bn to the local economy, in return for a .25bn tax break.

Battery expert Davide Andrea, an engineer at Colorado-based battery manufacturer Elithion, worries about costs. The most basic home unit will cost ,500. No details have yet emerged about the cost of the large units Tesla is reportedly supplying to companies including Apple and Google to help manage their power supplies.

“Electricity is way too cheap to store in an expensive battery,” Andrea said. “It’s like saying I’m going to be storing my potatoes in a safe. Potatoes are too cheap to store in a safe.”

But Andrea is sold on the idea that batteries are part of a more efficient energy future. He is currently involved in a new project in Boulder to install batteries in homes, in order to ease the strain on power plants and avoid costly rewiring as the sizes of neighborhoods change.

Felix Kramer, a clean energy entrepreneur in California, said he hopes Musk’s presentation on Thursday evening changes minds.

“Tesla demolished the idea that EVs [electric vehicles] were golf carts,” Kramer said. “And maybe they’re about to do it again now. Maybe they’re about to demolish the idea that we can’t switch from coal and gas to wind and solar because of reliability issues. If they convince consumers, that changes the conversation.”

But Andrea and Kramer are enthusiastic about the possibility of greater infrastructure improvements with greater adoption of electric cars. Power provision could get a lot more efficient if cities can be persuaded to draw power from those car batteries, as well as supplying it. That would provide electricity and diminish local reliance on expensive, fossil fuel-powered generators during times of peak demand – when everyone in New York turns on the air conditioner, for example. Nissan is already trying to do this with the Leaf in Japan.

“In a home, the cost of the storage becomes much more important,” Andrea said. “It solves so many problems – the power company no longer has to turn on a dirty power plant during high-demand times. You can use the present wire infrastructure.”

If those sound like lofty goals, they had frankly better be: Musk will have to impress a great many people in order to justify the gobs of money the state of Nevada is giving him – the gigafactory will be allowed to operate essentially tax-free for 10 years and won’t pay property taxes for another 10 afterward. Beyond even that, the state is giving Tesla m in transferable tax credits, which the company can sell to other businesses in the region.

Nor is it the first time Musk has asked the government to chip in: SpaceX receives 5m in help from Nasa.

Still, if Musk’s batteries can merge wind, solar and electric car power into existing grids, that would constitute tremendous economic savings for cash-strapped municipalities everywhere.

“This is within the power of humanity to do,” Musk told the large crowd gathered at Tesla’s design center in a Los Angeles suburb on Thursday. “We have done things like this before. It is not impossible.” © Guardian News & Media Limited 2010

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