Review on the Latest Conclusions of Working Group III Contribution to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change

Abstract

Intergovernmental Panel on Climate Change (IPCC) issued its latest research Working Group III Contribution to the Fifth Assessment Report (WGIII AR5) on April 2014. This report is designated to provide approaches to limit temperature rise below 2°C based upon reviews of latest literatures in this terrain. It offers comprehensive review on principles and conceptual frameworks of climate change mitigation, trends in stocks and flows of greenhouse gases and their drivers, mitigation targets and pathways, sectoral reduction potential and costs, international institutions on climate change mitigation, national and sub-national policies, climate finance, and other related issues. The report, contributed by WGIII, systematically analyzes these questions and assesses principals, framework problems, historic trajectories, future emission budgets and pathways, sectoral reduction targets and feasibilities, and national, sub-national, and international policies, and finance demands upon which to achieve the target to limit temperature rise within 2°C. These contents make the report a critical venue of international society to vie for political influences through social sciences, natural sciences, and other disciplines. This paper provides preliminary analysis upon main conclusions of the report and their policy interpretations, in order to deliver better technical support for climate negotiations in next stage and advancing relevant domestic works.