Reflection of the landscape in a bubble gives a fisheye appearance. The colors come from the oils on the bubble surface.
No processing but curves/contrast in Lightroom, this isn't projected with software.
On my blog at: viking79.blogspot.com/2009/07/bubble-world.html
Thanks everyone for taking this to Explore!
Featured on the Tyndall Centre for Climate Change Research website: www.tyndall.ac.uk/