I analyzed the question "given that space expansion is a scalar variation of scale, how do we know whether expands the space or decreases standard length unit?"; this work can be seen here: http://vixra.org/abs/1107.0016
I am engineer used to scaling problems and scale models and that gave me a special qualification for the above analysis; I have received emails saying, for instance, that it is "astonishing but promising".
I also made the first model of a past hot climate for Earth, in accordance with isotopic and biological data: http://vixra.org/abs/1412.0170. I think this paper is particularly relevant for paleontologists.