Perceiving the equation of state of Dark Energy while living in a Cold
  Spot
  The Cold Spot could be an adiabatic perturbation on the surface of last
scattering, in which case it is an over-density with comoving radius of the
order of 1 Gpc. We assess the effect that living in a similar structure,
without knowing it, has on our perception of the equation of state of Dark
Energy. We find that structures of dimensions such that they could cause the
Cold Spot on the CMB, affect the perceived equation of state of Dark Energy
possibly up to ten percent.
