Title: From Copenhagen to Durban and the challenge for sustainable levels of GHG concentrations

Authors: Socrates Kypreos; Antti Lehtilä

Addresses: Energy Economics Group, Paul Scherrer Institute, Villigen PSI. CH-5232, Switzerland ' VTT, Technical Research Centre, P.O. Box 1000, FI-02044 VTT, Espoo, Finland

Abstract: The Durban Conference of Parties (COP17) has approved a deal to negotiate and arrange by 2015, a global commitment to reduce greenhouse gases (GHGs) starting from 2020 onwards. COP17 confirmed the Cancún (COP16) agreement concluding that future global warming should be limited to below 2°C post-industrial. This report investigates scenarios of gradually stringent remaining emissions quotas (REQ) resulting to increased probabilities to limit temperature rise below 2°C. REQ are applied as cumulative bounds in the combined TIMES-MACRO model of the USA with the MERGE Integrated Assessment Model both able to analyse technological change. The study summarises the main findings and conclusions of this parametric analysis where all world regions accept a binding protocol or Accord starting in 2020 mitigating global warming. The mathematical description of the combined model that integrates in one set of equations and one objective function two hybrid top-down and bottom-up models with complementary regional representation is described in this paper.

Keywords: Kyoto extension; climate change; 2 degrees C warming; integrated assessment; global commitments; sustainable levels; GHG concentrations; GHG emissions; greenhouse gases; global warming; sustainability; temperature rise; modelling.

DOI: 10.1504/IJGEI.2016.078702

International Journal of Global Energy Issues, 2016 Vol.39 No.5, pp.323 - 339

Accepted: 13 Oct 2015
Published online: 01 Sep 2016 *

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