| Dear Aubrey, I am very happy to support the Global Commons Institute’s  Contraction and Convergence Proposal to the UNFCCC.   The causes of climate change are varied and  complex, and successful responses will probably be equally varied and  complex.  Contraction and Convergence is,  as you note, “an enormous undertaking,” but I believe that it offers arguably  the most fair way to proceed.   Without  fairness, there will be no lasting solutions.   Therefore, I happily support the C&C Proposal and the work of the  GCI. Best regards, Dennis Dennis Patrick O'Hara, DC, ND, BA, MDiv, PhDAssociate Professor, Ethics and Eco-theology
 Director, Elliott Allen Institute for Theology and Ecology
 University of St. Michael's College
                    Associate Member, Graduate FacultyCentre for Environment, University of Toronto
   For the C&C approach to become operational, the signatories to                     the UNFCCC must agree on a safe concentration of atmospheric GHGs,  the proportional allocation of this limited capacity based on national                     populations, the fair assessment of current levels of emissions, targets  for contraction of those national emissions that exceed allocations4 and                     the concurrent temporary increase in emissions for those countries which  have not utilized their full allocation – an enormous undertaking that                     has thus far been elusive.
  Nevertheless, the  proponents of the C&C approach argue that it can provide an equitable                     and just response to the climate change challenge that can win the support                     of the developing world since it both protects their ability to develop                     and obligates the developed world to reduce its excess emissions (Global  Commons Institute 2008).  They further argue that the date of convergence                     should be realized as soon as possible since the most vulnerable and least responsible for climate change are currently bearing a disproportionate  and unjust burden created by those who have utilized more than their                     fair share of the atmospheric commons, and justice demands that this be  resolved as soon as possible.Ethical Response to                     Climate Change
 Dennis Patrick O’Hara                     and Alan Abelsohn
 
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