Carbon dioxide removal to combat climate change? An expert survey on perception and support

Abstract

The most recent IPCC report considers Carbon Dioxide Removal (CDR) as an unavoidable climate change mitigation measure, although controversial discussions about CDR have taken place in the past. This study contributes to the ongoing debate by providing insights into academic expert opinions about Bioenergy with Carbon Capture and Storage (BECCS) and Direct Air Carbon Capture and Storage (DACCS). An online survey was conducted to examine how academic experts ( N = 172) perceive and to what extent they support BECCS and DACCS. Overall, the results show rather high expert support for research on and the deployment of BECCS and DACCS. Perceived feasibility of the technologies consistently predicted support for BECCS and DACCS, with means in the upper medium range. Further significant predictors were the extent to which experts perceived the technologies to be necessary, the experts’ amount of academic experience, the associated moral hazard, and the perceived tampering with nature.

Keywords

• net emission technologies
• direct air carbon capture and storage
• bioenergy with carbon capture and storage
• expert opinion
• climate engineering
• academic experts