Carnegie Council Audio Podcast

Current international responses to climate change continue to place the world on a trajectory beyond 1.5°C global warming, with impacts posing severe risks to natural and human systems. Discussions on carbon dioxide removal (CDR) globally has grown since the publication of the IPCC special report on global warming of 1.5°C, which reaffirms that large-scale CDR is required in all of its pathways to limit global warming to 1.5°C, with limited or no overshoot to achieve net-zero mid-century and global net negative emissions thereafter, until the end of the century. By removing between 100 to 1000 billion tonnes of CO2 depending on the speed of emissions reduction in respective pathways. CDR methods vary and include the use of nature-based approaches, such as afforestation and enhancing wetlands, or engineering-based approaches to directly capture carbon dioxide. At scale, they all present potential benefits and risks of negative side-effects and pose significant governance challenges as many governance gaps exis