Tag: CO2

New standards will save the industry more than 220 mill tonnes of CO2 The NGO Carbon War Room (CWR) said that it welcomed the IMOs announcement to mandate energy efficiency ratings for the international shipping fleet.The CWR said that the IMO resolution signals a key shift in the regulatory landscape of shipping, which has hitherto not required, even at the national level, any improvement in the sectors footprint, currently growing at between 3% and 4% a year.Peter Boyd, Carbon War Room COO, said: The IMO has an outstanding record in developing international agreements on safety and has drawn on this to make the first steps towards reducing the industrys carbon footprint. We applaud the work of the secretariat here in finding agreement in the international climate change debate.The CWR said that it had consistently argued that widely available energy efficiency ratings offer a proven means of instituting best practice design in energy-intensive applications.In December 2010, the organisation launched shippingefficiency.org , which made energy efficiency ratings for the 60,000-strong oceangoing fleet freely available for the first time, using the IMO-developed methodology.Peter Boyd added: There is a $70 bill subsidy for environmental improvement in shipping, called fuel savings from more efficient vessels. ...

A promising new innovation in geothermal technology A promising new innovation in geothermal technology, that offers a novel solution to climate change, has been created by two researchers from the University of Minnesota's Department of Earth Sciences. The technology focuses on tapping heat from beneath the Earth's surface. By using high-pressure carbon dioxide (CO2) instead of water to extract the heat, the system has the potential to produce significantly more efficient renewable energy. At the same time, by sequestering CO2 deep underground, it actively reduces atmospheric CO2. It's being hailed as a two in one solution for climate change.The approach, coined the CO2-plume geothermal system (or CPG) was discovered by Earth sciences faculty member Martin Saar and graduate student Jimmy Randolph, in the University of Minnesota's College of Science and Engineering. They first struck the idea in 2008 whilst driving to northern Minnesota together to conduct unrelated field research on geothermal energy capture and geologic CO2 sequestration."We connected the dots and said, 'Wait a minute - what are the consequences if you use geothermally heated CO2?'" recalled Saar. "We had a hunch in the car that there should be lots of advantages to doing that." They submitted their idea to ...

Efforts to keep climate action on track The World Bank will suggest a global levy on jet and shipping fuel in recommendations to G20 governments later this year on raising climate finance, a senior official said on Sunday, Reuters reported.Developed countries have already written off chances of agreement on a new binding deal at a U.N. conference in Durban this year, placing a new focus on piecemeal efforts including fund-raising.Binding targets under the Kyoto Protocol cap the greenhouse gas emissions of nearly 40 industrialized countries but expire in 2012 and now look unlikely to be extended in time.The World Bank is focusing on a levy on shipping and jet fuels in a report to G20 finance minister in October, among other efforts to keep climate action on track.The Bank estimates the extra cost to help the developing world prepare for more droughts, floods and rising seas at $100 billion annually. Various sources put the extra cost of cutting carbon emissions at $200 billion or more annually.Andrew Steer, World Bank special envoy for climate change said he was disappointed by the pace of a U.N. climate process which launched talks in 2007 to find a Kyoto successor.The U.N. talks are stalled ...

Results of increasing CO2 emissions and ocean acidification A natural experiment in tropical waters off Papua New Guinea suggests that with increasing CO2 emissions and ocean acidification some marine organisms will benefit, but many more will lose out.Climate scientist, Dr Janice Lough of the Australian Institute of Marine Sciences in Townsville and colleagues report their findings today in the journal Nature Climate Change."Even aside from thermal stress and bleaching we're going to get progressive acidification of the oceans and this study demonstrates that is not good for maintaining healthy coral reef ecosystems," says Lough."Although there are a few winners as you get higher CO2 there are many more losers."Increasing atmospheric CO2 levels lead to an increase in ocean acidity as the ocean absorbs some of this CO2."About a third of the extra CO2 that we've put into the atmosphere has been absorbed by the oceans and that changes the ocean chemistry," says Lough.The IPCC predicts that with atmospheric levels of at least 750 parts per million by 2100, ocean pH levels will drop from 8.1 to 7.8.Short-term laboratory experiments suggest this will change the chemistry of the ocean and make it harder for coral and other organisms to form calcium ...

Need of oil and CO2 free energy supply Alternative fuels have the potential to gradually replace fossil energy sources and make transport sustainable by 2050, according to a report presented to the European Commission by the stakeholder expert group on future transport fuels. The European Union (EU) will need an oil-free and largely CO2-free energy supply for transport by 2050 due to the need to reduce its impact on the environment and concerns about the security of energy supply. According to the EU, the expert group has for the first time developed a comprehensive approach covering the whole transport sector. Expected demand from all transport modes could be met through a combination of electricity (batteries or hydrogen/fuel cells) and biofuels as main options, synthetic fuels (increasingly from renewable resources) as a bridging option, methane (natural gas and biomethane) as complementary fuel, and LPG as supplement. "If we are to achieve a truly sustainable transport, then we will have to consider alternative fuels," said Vice-President Siim Kallas, who is also responsible for transport. "For this we need to take into account the needs of all transport modes." The Commission is currently revising existing policies and the report will feed into the ...