Carbon dioxide capture and geological storage (CCS) is one strategy to reduce greenhouse gas emissions that has attracted interest from government and industry in Canada. A key factor that will determine if organizations implement CCS is whether the public support the development of the technology. Public views and understandings of key issues surrounding CCS were assessed via Internet and phone on a representative sample of 1479 Canadians. We examined descriptive statistics to understand public perceptions of CCS and applied regression models to assess how risk perceptions, perspectives of climate change and trust in government relate to the support for or opposition to CCS development and funding for the technology. Results indicate there is low support for CCS in Canada; however, findings varied when taking into account participants’ proximity to projects. Furthermore, the publics’ perceptions of the risk and benefits of CCS influenced support for or opposition to the technology. We discuss implications of public perceptions on the development and deployment of CCS and provide recommendations for communication strategies about the technology.

二氧化碳捕获和地质封存（CCS）是减少温室气体排放的一种策略，引起了加拿大政府和行业的关注。决定组织是否实施CCS的关键因素是公众是否支持该技术的开发。通过互联网和电话以1479名加拿大人的代表性样本评估了公众对CCS关键问题的看法和理解。我们检查了描述性统计数据，以了解公众对CCS的理解，并应用回归模型评估风险感知，气候变化的观点以及对政府的信任与支持或反对CCS开发和技术资金的关系。结果表明，加拿大对CCS的支持率很低；然而，考虑参与者与项目的接近程度时，发现会有所不同。此外，公众对CCS风险和收益的看法影响了对该技术的支持或反对。我们讨论公众对CCS开发和部署的看法，并为有关该技术的传播策略提供建议。