Good to know I've got you thinking :) We know black anything absorbs solar more readily than white anything, I guess, you too, so why would it be different in the case of skin? On how life could survive on a dark planet, theoreticaly, we could anytime now break our orbital equilibrium by increasing the solar pressure on Earth, by Geo-Engineering, which is currently being actively worked on by VC funded scientists in some of the best known unis in the world.
That done, it wouldn't be long before we fly off into space.
Afrer that, fission would be our only remaing option of power, and we would probably develop that to a massive extent, achieving even planetary propulsion, initially with an intention of reestablishing orbit around the sun, but as usual there would be opposing forces, and by then the powerful would be more powerful, and more vicious than ever.
Would we ever work out that it was all part of a Grand plan, to replace another dark planet on which they had literally burned all the remaining fissionable material?
Too crazy to be true, of course.
it, can't be true, not really, surely not. ;-)