http://www.endseurope.com/12955), McKinsey calculates the potential emission reductions and costs of more than two hundred mitigation actions across ten sectors and 21 regions from now to 2030.
The authors conclude it is technically and economically feasible to cut carbon emissions by 35 per cent by 2030 versus 1990 levels, amounting to a 38-gigatonnes (Gt) reduction. Achieving this would cost E200-300bn annually, below McKinsey's previous predictions and around half of UK economist Nicholas Stern's estimate (EE 30/03/07 http://www.endseurope.com/13290 and EE 30/10/06 http://www.endseurope.com/12571).
McKinsey identifies three priority abatement categories where the cost of action is under E60 per tonne of carbon. First, 14 Gt of carbon could be saved through energy efficiency improvements in vehicles, buildings and industrial equipment, largely at a net profit (EE 14/02/08 http://www.endseurope.com/14701).
Another 12Gt could be saved through the application of low-carbon energy technologies such as wind, nuclear, and hydropower, carbon capture and storage (CCS), and biofuels, the consultants say. These technologies could provide 70 per cent of global electricity in 2030 versus 30 per cent in 2005, they estimate.
Changes in forestry and land-use could save another 12Gt, according to the report. On top of these three main avenues for emission reductions, the authors suggest another 9Gt could be won through behavioural change, albeit at higher cost than E60 per tonne.
But capturing the full potential for emission reductions will be a "major challenge" say the authors (EE 12/11/08 http://www.endseurope.com/17112). It will require global cross-sectoral action and commitment, a strong policy framework, and a start on all this in 2010, they say.Follow-up: McKinsey report http://globalghgcostcurve.bymckinsey.com/ plus reactions from WWF
Genon K. Jensen | DUGI e.V.
A new indicator for marine ecosystem changes: the diatom/dinoflagellate index
21.08.2017 | Leibniz-Institut für Ostseeforschung Warnemünde
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16.08.2017 | Hochschule Landshut
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
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Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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