1.Transient climate response to cumulative carbon emissions (TCRE) used for analyzing the socioeconomic impacts of achieving a climate target – studies by IAMs.2.Rojelj et al. (2013): systematic analysis of how different levels of short-term emissions (emission targets for 2020) would impact on the technological/economic feasibility of achieving the UN 2°C target by 2100.3.a cumulative emission budget as an indicator for staying below 2°C (2500 GtCO_2e in 21st century).4.Riahi et al. (2015): implications of short-term policies (the national pledges issued at the Copenhagen Accord/Cancun Agreements) on the costs and feasibility of long-term climate objectives – with model comparison studies and more type of mitigation technologies.
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