The most recent paper on white roofs and potential influence is downloadable at http://www.energy.ca.gov/publications/displayOneReport.php?pubNum=CEC-999-20 08-031
Mike MacCracken On 12/12/08 9:51 AM, "Ken Caldeira" <kcalde...@stanford.edu> wrote: > Reflective roofs have not been discounted. > > Such roofs may have very low marginal cost so it could be worth doing. > However, this approach would not be scalable so could be a minor contribution, > at best, to overall risk reduction. > > On Fri, Dec 12, 2008 at 6:42 AM, Andrew Lockley <andrew.lock...@gmail.com> > wrote: >> >> Sounds very similar to the 'reflective roof' idea which has been >> considered and (I believe) discounted. >> >> 2008/12/12 Steven Parkes <stevenjohn.par...@gmail.com>: >>> > >>> > Has anyone considered adding _slightly reflective_ materials to surfaces >>> > that are regularly covered or newly made. For instance tarred roads, >>> > roofing and the like. Too reflective on roads would be bad for drivers >>> > in the day but certainly may show a little advantage at night. Imagine >>> > if every vehicle on the road was forced to have a reflective roof, it >>> > would probably have to be redesigned so as not to reflect into the eyes >>> > of those drivers in taller vehicles. >>> > >>> > Who could do the math and test the viability here? >>> > >>> > Steven Parkes >>> > >>>> > > >>> > >> >> > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to geoengineering@googlegroups.com To unsubscribe from this group, send email to geoengineering+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en -~----------~----~----~----~------~----~------~--~---
