Mitigation Scenarios and Pathways

 ©Henrike Doebert / Climate Analytics
©Henrike Doebert / Climate Analytics

We explore the greenhouse-gas emission reductions necessary to achieve long-term global climate goals, such as holding warming below 1.5 and 2°C warming relative to pre-industrial levels. Analysing emissions scenarios from energy-economic models and other sources with coupled carbon-cycle/climate models leads to globally “allowed” ranges of emissions for different greenhouse gases, air pollutants and sectors, as well as associated time- and pathway-dependent mitigation costs and technology portfolios.

Latest

Matthew Gidden, team lead for mitigation pathways at CA comments on how coal-fired power plants need to be eliminated in two decades as they account for approximately 40 percent of the total electricity today.  
Andrzej Ancygier, senior energy and climate policy analyst at CA comments on the set targets by German CDU/CSU and SPD and how they might not be enough to reach the 1.5 temperature goal of the Paris Agreement.  

Publications

53 countries have signed up to the Global Methane Pledge, committing to cut methane emissions by 30% in 2030 from 2020 levels. In 2019, these countries made up 30% of global methane emissions and around 34% of total global greenhouse gas (GHG) emissions. This analysis quantifies the potential impacts of the pledge if all countries were to adopt it.  
This report identifies 40 indicators across key sectors that must transform to address the climate crisis, and assesses how current trends will impact how much work remains to be done by 2030 and 2050 to deliver a zero-carbon world in time. It also outlines the required shifts in supportive policies, innovations, strong institutions, leadership and social norms to unlock change.  
In December 2020, the Federal Government projected Australia’s emissions would reach roughly 22% below 2005 levels by 2030 which falls short of its 26-28% Paris Agreement target. We anticipate the Federal Government will soon announce an increase in projected emissions reductions for 2030 under a business-as-usual scenario. This report reveals virtually none of the likely reductions are a result of the Federal Government’s own policy.  
Achieving net-zero emissions at the global level, as required to limit warming to 1.5 °C, means both rapid emissions reductions across all sectors as well as a scaling-up of carbon dioxide removal (CDR). As a growing number of countries bring forward national net-zero targets, the questions of how much CDR each nation holds responsibility for, whether CDR transfers should be possible under the Paris Agreement market mechanisms, and how this might affect the years in which different countries should achieve net-zero, become increasingly important.  

Projects

The Paris Agreement commits all countries to take ambitious steps to guarantee a low carbon future. This requires individual national governments to submit more ambitious emission reduction targets. In support of this urgent need to translate global trajectories to be in line with the Paris Agreement, this project, founded by the IKEA Foundation, shows how a group of countries, across all regions and development spectrum can update their NDCs to be in line with the Paris climate goals.  
The project aims to investigate how changes in land cover and land management can help to meet the mitigation and adaptation objectives of the Paris Agreement, as well as the Sustainable Development Goals. The project partners findings will be disseminated through a number of tools, events and products and by closely involving stakeholders and policy-makers, with the aim to support sustainable land use decision-making.  
The "Climate Action Tracker" is an independent science-based assessment, which tracks the emission commitments and actions of countries.  
COP21 Results and Implications for Pathways and Policies for Low Emissions European Societies The Paris Agreement represents an important new strategic context for EU climate policy. Analysing the implications of this new context requires an interdisciplinary approach, combining analysis of the evolution of the international climate regime as well as of NDCs and their socio-economic implications.  
Science and policy to assist and support SIDSs and LDCs to negotiate a strong international climate regime, enabling low carbon development and supporting adaptation needs.