Tag Archives: press-releases
Bioenergy With CCS Can ‘Reverse’ Global Warming
11 July 2013 By Edd Gent Global warming could be reversed by using bioenergy with carbon capture and storage, according to Swedish researchers Researchers have claimed bioenergy with carbon capture and storage (BECCS) could allow the world to reverse global warming. The team, from Chalmers University of Technology in Sweden, say the technology can reverse the global warming trend and push temperatures back below the global target of 2°C above pre-industrial levels, even if current policies fail and the world initially overshoots this target. In a paper published in journal Environmental Research Letters today, the researchers show that if BECCS is implemented on a large-scale along with other renewable energy sources, temperature increases can be as low as 1.5°C by 2150. Co-author of the study, Professor Christian Azar, said: “What we demonstrate in our paper is that even if we fail to keep temperature increases below 2°C, then we can reverse the warming trend and push temperatures back below the 2°C target by 2150. “To do so requires both large-scale use of BECCS and reducing other emissions to near-zero levels using other renewables, mainly solar energy, or nuclear power.” BECCS is a greenhouse gas mitigation technology based on bioenergy that produces fuel for power plants or transportation while simultaneously removing carbon dioxide from the atmosphere. Trees and crops give off carbon dioxide when they are burnt as fuel, but also act as a carbon sink as they grow beforehand, absorbing carbon dioxide from the atmosphere. These two processes cancel each other out, resulting in net zero emissions of carbon dioxide. When combined with carbon capture and storage – techniques that aim to pull carbon dioxide out of the flue gases from power plants and redirect it into geological storage locations – the overall carbon dioxide emissions are negative. If applied on a global scale, this could help to reverse global warming. In their study, the researchers developed an integrated global energy system and climate model that enabled them to assess the most cost-effective way forward for a given energy demand scenario and temperature target. They found that stringent temperature targets can be met at significantly lower costs if BECCS is implemented 30 to 50 years from now, although this may cause a temporary overshoot of the 2°C target. “The most policy relevant implication of our study is that even if current political gridlock causes global warming in excess of 2°C, we can reverse the temperature trend and reach targets later. This means that 2°C targets or even more ambitious targets can remain on the table in international climate negotiations,” Azar said. But, the authors caution against interpreting their study as an argument for delaying emission reductions in the near-term. Azar said: “BECCS can only reverse global warming if we have net negative emissions from the entire global energy system. This means that all other CO2 emissions need to be reduced to nearly zero. “Also, temperatures can only be reduced by about 0.6°C per century, which is too slow to act as an ’emergency brake’ if climate damages turn out to be too high. The more we reduce emissions now, the more ambitious targets we can achieve in the long term, even with BECCS. ” Continue reading
Scrapping Of Carbon Tax Threatens Carbon Farming
ABC Rural By Caitlyn Gribbin Updated Mon Jul 15, 2013 2:25pm AEST PHOTO: Henbury Station in Central Australia, site of a failed attempt to establish the world’s biggest carbon farm. (ABC: Caddie Brain) AUDIO: Fears over future of carbon farming (ABC Rural) MAP: Sydney 2000 Research and lobby group, the Australian Farm Institute, says carbon farming won’t be profitable for years, if an emissions trading scheme is fast tracked. Prime Minister Kevin Rudd will scrap the carbon tax and move to an emissions trading scheme next year – one year earlier than originally planned. The fixed carbon price of $24.15 a tonne will be removed in favour of a floating price, thought to be between $6 and $10 a tonne. Mick Keogh, from the Australian Farm Institute, says that price is too low for farmers to make profits from the Carbon Farming Initiative, a scheme where farmers earned carbon credits and sell to people and businesses wanting to offset their emissions. “If you’re in the market to sell carbon credits, you’re now looking at the potential next year that those credits will be worth $6 a tonne, rather than the $24.15 a tonne,” he said. “That obviously has a big impact on the potential profitability of a project you might be looking to undertake. “It would be very limited numbers of projects that would likely to be viable.” Farmers say the carbon tax has significantly pushed up their bills, especially electricity. Australian Dairy Farmers president Noel Campbell says a lower carbon price is a win for agriculture. “It’s positive compared to where we have been, certainly it will make a difference,” Mr Campbell said. “But still we will need to make sure that with whatever situation we’ve got, we’re in a competitive situation with the people that we trade against.” Opposition Leader Tony Abbott says the Prime Minister has not truly abolished the carbon tax, but is merely changing its name. The Greens leader Christine Milne says the decision to scrap the carbon tax is “cowardly”. The Australian Industry Group says Mr Rudd’s move is positive and will cut costs for businesses once the floating price begins next July. Continue reading
Shanghai To Fine Firms For Breaching CO2 Market Rules
15 Jul 2013 10:13 Last updated: 15 Jul 2013 13:37 BEIJING, July 15 (Reuters Point Carbon) – Shanghai companies that fail to surrender enough government-issued carbon permits for each tonne of CO2 they emit under the city’s Emissions Trading Scheme face government fines of up to 100,000 RMB ($16,000) and will be forced to buy permits in the market, according to draft rules released by city lawmakers. Shanghai plans to launch an emissions market before the end of the year, capping carbon dioxide emissions from 200 companies across a broad sector of the city’s economy, including big energy users such as Bao Steel, energy companies such as PetroChina as well as China Eastern Airlines. The city is one of seven designated regions in which the central government is trialing emission markets before rolling out a federal scheme later in the decade in a bid to rein in pollution and greenhouse gas emissions and improve energy efficiency. The release of draft rules on Friday reveal for the first time how lawmakers intend to enforce environmental laws on companies responsible for pumping out about 110 million tonnes of carbon dioxide each year. “It is urgent to make clear rules on the basic issues as for carbon trading…. (the rules) will provide strong legal support and protection to carry out the pilot ETS,” the draft rules said. As well as fines for companies failing to surrender permits, companies that obstruct independent auditors in reporting emissions face penalties of up to RMB50,000 per breach. Emitters will be able to reduce the cost of complying with the scheme by offsetting up to 5 percent of their emissions by buying carbon credits, known as Chinese Certified Emission Reductions, from domestic projects that cut emissions. The rules, which were published on the local government’s website on Friday, still need to be ratified by government officials before becoming law. China, the world’s biggest emitter has been plagued by environmental problems associated with its rapid increase in coal consumption, with smog engulfing many of its cities located across the eastern seaboard. To improve energy efficiency the nation has a target to cut the emissions intensity of its economy – emissions per unit of GDP – by up to 45 percent by the end of the decade. To help it meet that goal, Shanghai plans to cut its carbon intensity by 19 percent below 2010 levels by 2015 and wants to curb 2013 energy consumption below 118.4 million tonnes of standard coal equivalent, increasing by 4.18 percent year-on-year. The city of Shenzhen was the first region in China to launch a carbon market in July, with permits changing hands at about $4.50-5.00 each, roughly the same price as those in Europe. By Kathy Chen – kathy.chen@thomsonreuters.com and Andrew Allan Continue reading
