Black hole remnants and dark matter

We argue that, when the gravity effect is included, the generalized uncertainty principle (CUP) may prevent black holes from total evaporation in a similar way that the standard uncertainty principle prevents the hydrogen atom from total collapse. Specifically we invoke the CUP to obtain a modified Hawking temperature, which indicates that there should exist non-radiating remnants (BHR) of about Planck mass. BHRs axe an attractive candidate for cold dark matter. We investigate an alternative cosmology in which primordial BHRs axe the primary source of dark matter.