Just pass along a message from Andy Revkin. The linked article has an impressive video showing airplane tracks. -NZ
Andrew Revkin <rev...@gmail.com> please pass this link around and post a comment and link to the images on the dot earth blog if you'd like: http://dotearth.blogs.nytimes.com/2010/04/19/on-ash-and-the-global-aviation-boom/ (i'm on airplane about to shut down computer..) -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to geoengineer...@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.