  The current scenario of black hole evaporation holds that the Hawking energy
flux $F$ is powered by pair creation at the horizon. However, pair creation
produces entanglements, some of which must necessarily be broken before the
black hole evaporates completely. That leads to loss of information and
violation of unitarity.
  In this paper, an alternative scenario is suggested that reproduces the
essential features of Hawking evaporation, but does not invoke pair creation
with its attendant problems. In this "accreting Boulware" scenario, a positive
flux $F$ is still an outflux at infinity, but near the horizon it becomes an
influx of negative energy. This negative energy flux (marginally) satisfies the
Flanagan energy inequality.
