Do Global Energy budgets make sense. ???

[MostlyHarmless]

A further thought on "energy budget" diagrams, in particular the Kiehl-Trenberth version. It shows 333 W/sq.m "back radiation" from GHGs. All of that radiation is shown as absorbed. Where is the albedo effect - some must be reflected? Albedo varies with radiation wavelength for different surface types, but an average albedo for LW infrared is similar to that for visible light. I believe (I've got a link somewhere) it's slightly higher, i.e. more is reflected. This one omission on its own (it can't be ignored or discounted) totally invalidates the energy budget figures.