weird result http://arxiv.org/abs/hep-th/0602159 Spacetime Structure of an Evaporating Black Hole in Quantum Gravity A.Bonanno, M.Reuter 23 pages, 7 figures MZ-TH/06-04 "The impact of the leading quantum gravity effects on the dynamics of the Hawking evaporation process of a black hole is investigated. Its spacetime structure is described by a renormalization group improved Vaidya metric. Its event horizon, apparent horizon, and timelike limit surface are obtained taking the scale dependence of Newton's constant into account. The emergence of a quantum ergosphere is discussed. The final state of the evaporation process is a cold, Planck size remnant."