Considerations for GHG Re

In the 2015 Paris Agreement, the international community vowed to “reach global peaking of greenhouse gas emissions as soon as possible,” and to achieve “rapid emissions reductions thereafter.” Despite that, however, global emissions continue to increase. The lack of progress has spurred interest in the possibility of removing greenhouse gases directly from the atmosphere. Modelling by the Intergovernmental Panel on Climate Change suggests that atmospheric greenhouse gas removal (GHGR) could help to combat climate change in three ways. First, GHGR could be used to reduce net emissions in the short-term, while countries are in the process of decarbonizing. Second, GHGR could be used to offset residual emissions from hard-to-decarbonize sectors (e.g., aviation) and thus achieve net-zero emissions. Third, in the longer-term, GHGR could be used to achieve net-negative emissions if deployed at levels exceeding residual emissions. Scientists have proposed a variety of GHGR techniques, but questions remain about their efficacy, benefits, and risks. Technical feasibility is not the only consideration as large-scale deployment of GHGR could raise a host of social, ethical, and governance issues. For example, some climate activists have argued GHGR may discourage action to reduce emissions, and further entrench fossil fuel use. Others have expressed concern about the equity and justice implications of deploying GHGR, arguing that it could exacerbate existing inequalities and place the most vulnerable at greater risk. Existing governance frameworks may not be effective in preventing these negative outcomes nor maximizing the benefits of GHGR. This course will explore possible technique for large-scale GHGR. We will discuss the feasibility of deploying different techniques, with a particular focus on the ethical, social, and governance issues that large-scale deployment could raise. We will also consider strategies for advancing just and equitable deployment and explore the role of different actors (e.g., governments, the private sector, and civil society) in ensuring that occurs.