I mentioned a paper by Mathews. My error. I meant Marshall and the following paper:
MARSHALL, C.H. et al. (2003) “The Impact of Anthropogenic Land-Cover Change on the Florida Peninsula Sea Breezes and Warm Season Sensible Weather”, *Monthly Weather Review*, V. 132 (2004). See: http://www.climatesci.org/publications/pdf/R-272.pdf Pielke, et al. have done similar studies for the Northeast U.S., in Australia and I think in the California agricultural valley. He also discussed some similar work on the west coast of Africa. Add up enough of this and it could have a significant effect on global temperature. These level of changes are not adequately reflected in the GCMs used by the IPCC, according to Pielke. d. On Sun, May 17, 2009 at 6:54 PM, David Schnare <[email protected]> wrote: > Actually, land management probably should be taken into account by regional > authorities. Reforestation around Kilimejaro (sp?) would reestablish the > snow cap up there fairly quickly. Reestablishment of the swamps over 60 > percent of Florida will cool the state by "several" degrees and increase > rainfall by 10 - 12% according to the Matthews et al study. Similar > opportunities exist in western Africa, Australia and no doubt many other > places. Should the planet continue to warm, regardless of the cause, land > use may well be a part of adaptation necessary to maintain local temperature > and precipitation. > > David. > > On Sun, May 17, 2009 at 3:45 PM, Andrew Lockley < > [email protected]> wrote: > >> Countries may well try to use such techniques as a may of meeting >> obligations, or to justify not cutting GHGs. We should be prepared for the >> arguments. >> A >> >> 2009/5/15 David Schnare <[email protected]> >> >>> If we are going to get into albedo management, then we really would >>> have to get into land management. Pielke's work modeling the effects of >>> land albedo in Florida and the North East demonstrate the massive effect of >>> changing albedo. Thus, if we are going to get into white roofs, it makes no >>> sense but to get into an entire albedo budget. Not sure there will ever be >>> sufficient political opportunity to mandate land use practices as part of a >>> climate change response. >>> >>> d. >>> >>> On Fri, May 15, 2009 at 5:09 AM, Sam Carana <[email protected]>wrote: >>> >>>> >>>> "Should albedo be taken into account in meeting CO2 emissions >>>> reduction targets?" >>>> >>>> >>>> Here's my view: >>>> >>>> Geoengineering should not become a substitute for emission reductions. >>>> Climate change requires a comprehensive response, consisting of at >>>> least four parts: >>>> - Emissions reduction >>>> - Carbon stock management >>>> - Heat transfer and radiation management >>>> - Adaptation >>>> All parts need to be adequately addressed and each of these parts >>>> requires a separate and appropriate policy framework - details should >>>> be worked out at the Copenhagen Conference. >>>> >>>> At the Copenhagen Conference, an agreement should be reached on >>>> targets for "emission reduction". Each country can then decide how to >>>> achieve their targets, provided they do reach them, which should be >>>> backed up by sanctions against countries that fail to reach their >>>> targets. >>>> >>>> The efforts of one country in one part, e.g., albedo change achieved >>>> by white roofs, may deserve credit, but only as part of "radiation >>>> management". Such credit should not translate into a reduction of to >>>> duty for that country to reduce its emissions. >>>> >>>> >>>> Cheers! >>>> Sam Carana >>>> >>>> >>>> -- >>>> David W. Schnare >>>> Center for Environmental Stewardship >>>> >>>> >>>> >>>> >>>> >> > > > -- > David W. Schnare > Center for Environmental Stewardship > -- David W. Schnare Center for Environmental Stewardship --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en -~----------~----~----~----~------~----~------~--~---
