Stephen and list I have known one of the key authors of the recent black carbon (BC) report, U Illinois Prof. Tami Bond for some years. A few weeks ago, I had a chance to hear and talk with her more on the details of that study. You and other cloud experts personally could help a lot in removing a large present uncertainty in the manner in which BC is influencing cloud formation - not just global warming magnitude but also direction. Much black carbon-cloud research is clearly needed.
Besides the obvious need to cut back on man-made and natural fires, she noted the huge negative effects of kerosene lanterns - which is something relatively easy to remedy with solar electric systems. However, I write this mostly to see if any on this list can provide an answer that Prof. Bond could not. - how large might the BC contribution be of making charcoal in the "bush", where emissions are mostly vented, rarely flared? I think it likely that mostly illegal char-making is more of a problem than the quite serous problem of cooking with poorly performing (but no or low first-cost) stoves. There is a growing awareness that char-making stoves (for CDR purposes, using biochar) can provide black carbon and CDR benefits in addition to efficiency and health benefits. To repeat - has anyone seen any data on how much BC comes from making charcoal in the bush? Ron ----- Original Message ----- From: "Stephen Salter" <[email protected]> To: [email protected] Sent: Monday, February 4, 2013 7:47:12 AM Subject: Re: [geo] Fwd: New report highlights SLCF emissions in the Nordic countries Hi all Black carbon gives a short-lived climate forcing if it is covered by a fall of nice new clean snow. But if there is lots of snow melt many old layers of black carbon and volcanic ash will get exposed. Stephen -- Emeritus Professor of Engineering Design School of Engineering University of Edinburgh Mayfield Road Edinburgh EH9 3JL Scotland [email protected] Tel +44 (0)131 650 5704 Cell 07795 203 195 WWW.see.ed.ac.uk/~shs On 04/02/2013 14:38, Oliver Tickell wrote: There is at least one kind of geo-engineering that is both effective and uncontroversial - reducing black carbon emissions - in particular those reaching the Arctic! -------- Original Message -------- Subject: New report highlights SLCF emissions in the Nordic countries Date: Mon, 4 Feb 2013 13:55:37 +0000 From: Michael Funch <[email protected]> Reply-To: Michael Funch <[email protected]> To: Climate Change Info Mailing List <[email protected]> CC: [email protected] <[email protected]> , Anna Gran <[email protected]> , Frøydis Johannessen <[email protected]> New report highlights SLCF emissions in the Nordic countries Conclusions and recommendations on Nordic actions against Short-lived Climate Forcers: New report produced as a follow up to the Svalbard Declaration from the Environment Ministers in the Nordic countries . High concentrations of Short-lived Climate Forces such as black carbon may have a large impact on global warming, especially for the Arctic region. The good news, however, is that early reductions of such pollutants could reduce the speed of global warming in the short term. Emission reductions will also have important health benefits. Realising that global emissions of SLCFs can only be effectively abated through broad international, regional and national initiatives, the Nordic Ministers of Environment from Denmark, Finland, Iceland, Norway and Sweden adopted “ the “Svalbard Declaration” in March 2012 and agreed to improve the basis for national and joint Nordic initiatives. To support the work initiated by the ministers, the Nordic Climate and Air Quality Group under the Nordic Council of Ministers has now produced a new report with nine specific policy recommendations on immediate Nordic actions, Nordic campaigns and international actions. Read the full report . Read the Svalbard Declaration . Background Recent scientific findings have identified that the so-called Short-lived Climate Forcers (SLCFs) such as black carbon (soot) might have a larger impact on global warming than earlier assessments have indicated, especially for the Arctic climate, resulting in rapid melting of snow and ice in the Arctic region. Abatement of these emissions would reduce the speed of global and Arctic warming. The Nordic Climate and Air Quality Group under the Nordic Council of Ministers held a seminar in June 2012 where scientist and policy-makers discussed recent scientific developments and on-going activities related to SLCF’s. This included national experiences with emission inventories, identification of cost-effective measures to cut emissions and the drawing up of national action plans as well as the development in the field of international co-operation on SLCFs. In addition, the workshop adopted a number of conclusions and recommendations on scientific research, monitoring and modelling underlining that particular emphasis should be directed towards the Arctic region, and the need to intensify collaboration with Russia. All presentations at the workshop are also included in the report . Venlig hilsen/ Kind regards Michael Funch Seniorrådgiver/Senior Adviser Direct +45 21 71 71 43 [email protected] Nordisk Råd/Nordisk Ministerråd/ Nordic Council/Nordic Council of Ministers Ved Stranden 18 DK-1061 København K Tel +45 33 96 02 00 Fax +45 33 96 02 02 http://www.norden.org -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected] . To post to this group, send email to [email protected] . Visit this group at http://groups.google.com/group/geoengineering?hl=en . For more options, visit https://groups.google.com/groups/opt_out . The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering?hl=en. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
