International CO 2 emissions reduction commitments are insufficient to avert damaging global warming and imperil a sustainable future. Climate engineering approaches are increasingly proposed as near-term intervention strategies, but deployment of these controversial techniques will require careful engagement with and the support of the public. New quantitative measurements of public perceptions for six climate engineering approaches show that the public of the United Kingdom (UK), United States (US), Australia (AU) and New Zealand (NZ) continue to have little knowledge of climate engineering. All approaches are regarded unfavourably, albeit less so for carbon dioxide removal (CDR) than solar radiation management (SRM). Knowledge and perceptions are remarkably similar between countries although UK and US respondents are more favourable towards SRM and UK respondents are more favourable towards CDR. Stratospheric aerosol injection is the most negatively perceived approach. Support for small-scale trials is also higher for CDR approaches than SRM. Statistical analyses yield mixed relationships between perceptions of climate engineering and age, political affiliation and pro-ecological views. Thus far, attempts to engage the public with climate engineering have seen little change over time and consequently, there is growing urgency to facilitate careful citizen deliberation using objective and instructive information about climate engineering.

中文翻译：

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公众对气候工程仍然一无所知并保持警惕

国际 CO 2 减排承诺不足以避免破坏性的全球变暖并危及可持续的未来。气候工程方法越来越多地被提议作为近期干预策略，但这些有争议的技术的部署需要公众的谨慎参与和支持。对六种气候工程方法的公众认知的新定量测量表明，英国 (UK)、美国 (US)、澳大利亚 (AU) 和新西兰 (NZ) 的公众仍然对气候工程知之甚少。所有方法都被认为是不利的，尽管在二氧化碳去除 (CDR) 方面不如太阳辐射管理 (SRM)。尽管英国和美国的受访者更喜欢 SRM，而英国的受访者更喜欢 CDR，但各国之间的知识和看法非常相似。平流层气溶胶注入是最消极的方法。CDR 方法对小规模试验的支持也高于 SRM。统计分析产生了对气候工程的看法与年龄、政治派别和亲生态观点之间的混合关系。迄今为止，随着时间的推移，让公众参与气候工程的尝试几乎没有发生什么变化，因此，使用有关气候工程的客观和有指导意义的信息来促进仔细的公民审议变得越来越紧迫。平流层气溶胶注入是最消极的方法。CDR 方法对小规模试验的支持也高于 SRM。统计分析产生了对气候工程的看法与年龄、政治派别和亲生态观点之间的混合关系。迄今为止，随着时间的推移，让公众参与气候工程的尝试几乎没有发生什么变化，因此，使用有关气候工程的客观和有指导意义的信息来促进仔细的公民审议变得越来越紧迫。平流层气溶胶注入是最消极的方法。CDR 方法对小规模试验的支持也高于 SRM。统计分析产生了对气候工程的看法与年龄、政治派别和亲生态观点之间的混合关系。迄今为止，随着时间的推移，让公众参与气候工程的尝试几乎没有发生什么变化，因此，使用有关气候工程的客观和有指导意义的信息来促进仔细的公民审议变得越来越紧迫。