{"id":4117,"date":"2024-11-18T11:43:30","date_gmt":"2024-11-18T10:43:30","guid":{"rendered":"https:\/\/wpethzprd.ethz.ch\/energy\/?p=4117"},"modified":"2025-03-27T16:14:03","modified_gmt":"2025-03-27T15:14:03","slug":"carbon-removal-acceptance","status":"publish","type":"post","link":"https:\/\/blogs.ethz.ch\/energy\/carbon-removal-acceptance\/","title":{"rendered":"Expensive but effective: Why citizens support costly but durable carbon removal practices"},"content":{"rendered":"\t\t
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By Susanne Rhein<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Susanne Rhein<\/a> is a PhD candidate at the International Political Economy and Environmental Policy Group at ETH Z\u00fcrich. Her research focuses on determining pathways to overcome public acceptance challenges associated with climate policy. Specifically, she is interested in determining political factors that enhance the credibility of and in turn support for climate change mitigation from a public perspective.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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As climate change accelerates and CO2<\/sub> emission reductions alone prove insufficient to meet climate targets, carbon removal has become essential for tackling hard-to-abate emissions. However, deploying carbon removal at scale presents a critical challenge for governments: How can they ensure it is both effective and affordable enough to secure public support?\u00a0 We show that this public support challenge can be overcome if carbon removal practices are deployed in combination with regulations that enhance the durability of CO2 <\/sub>removal , even if these regulations increase costs.<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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As climate change accelerates and emission reduction efforts struggle to reach<\/a> the Paris Agreement\u2019s goal to reduce global warming to well below 2\u00b0C until 2050<\/a>, carbon removal has become critical for mitigating CO2<\/sub> emissions that are hard to abate otherwise. In Switzerland, these hard-to-abate emissions mostly originate from the agricultural sector, cement, and (bio)waste-to-energy plants<\/a>. Carbon removal often involves extracting CO2<\/sub> from the atmosphere and storing it in plants, soil, or even deep rock formations. Well-known approaches to remove CO<\/a>2<\/sub><\/a> from the atmosphere include afforestation projects or machines that filter CO2<\/sub> directly from the air (i.e., Direct Air Capture and Storage)<\/span>. However, capturing CO2<\/sub> from the fumes of bioenergy plants, that burn organic material like wood chips or biowaste, can also lead to negative CO2<\/sub> emissions since plants absorb CO2<\/sub> as they grow but release it once they are burned \u00a0(i.e., Bioenergy with Carbon, Capture and Storage)<\/span>.<\/p>

While policymakers and scientists alike consider carbon removal necessary for successful climate change mitigation, the effectiveness of this mitigation approach hinges on well-executed regulations<\/a> that ensure that removed CO2<\/sub> remains stored as long as necessary. The reason for this is that as soon as captured & stored CO2<\/sub> leaks back into the atmosphere, it continues to contribute to climate change, reversing the positive effect carbon removal had on the climate. Recent scrutiny of afforestation projects<\/a> has highlighted the need for better regulation that targets carbon removal practices especially as more countries rely on it<\/a> to reach their climate change mitigation goals. Currently, many projects that claim to remove CO2<\/sub> from the atmosphere fail to deliver meaningful climate benefits due to inadequate storage time or failure to remove CO2<\/sub> to begin with.<\/a> In response, European countries<\/a> started to propose certification standards for carbon removal to ensure that only durable projects are certified. While higher standards are expected to raise the effectiveness of carbon removal, they will likely also raise the costs for businesses and consumers as they restrict access to cheap and ineffective carbon removal certificates<\/a>.<\/p>

Public Support Challenges Associated with Carbon Removal Regulations<\/strong><\/h2>

Public opinion can make or break the implementation of climate policy. In Switzerland, with its strong direct-democratic instruments, recent examples include the rejection of the CO2 <\/sub>Act in the 2021<\/a> referendum and the adoption of the Climate and Innovation Act<\/a>. As public awareness of carbon removal increases, this means that public support for carbon removal regulations is essential to ensure that they contribute to climate change mitigation.<\/p>

Carbon removal certification standards increase the costs and the effectiveness<\/a> of carbon removal practices. While higher policy costs generally decrease public support, perceived effectiveness has the opposite effect<\/a>. The negative effect of high costs on public support is particularly pronounced for climate policy, given that climate change mitigation mostly aims at achieving targets in the distant future. This means that the costs of climate policy hit immediately, while its goals and societal benefits are more distant, abstract and uncertain. This is also true for the deployment of carbon removal, which aims to contribute to achieving net-zero greenhouse gas emissions between 2040 and 2050.<\/p>

However, the widespread belief that citizens are unwilling to pay for climate change mitigation neglects the fact that citizens also demand effective climate policies.\u00a0 Thus, it is not clear if citizens will always choose cheaper climate policy options over more expensive ones. For example, although the rejection of the Swiss CO2<\/sub> law is often attributed to the fact that it would have raised the costs of climate-damaging behavior, a less frequently cited reason is that the Swiss public also questioned its effectiveness<\/a>. Thus, when forming our climate policy preferences, we might not always prioritize immediate policy costs. On the contrary, if we are convinced that a policy will be effective in mitigating climate change in the long term, we are much more likely to believe that the policy will be beneficial, especially as climate change becomes more visible today. Regulations that increase the effectiveness of carbon removal could potentially counteract the negative effect of its rising prices resulting from these measures on public support. This includes regulations that prevent the use of carbon removal methods that are unable to store CO2 <\/sub>over longer times<\/a> or testing policy measures with pilot phases<\/a> before settling for final implementation.<\/p>

Citizens Prefer Costly Durable Carbon Removal Over Cheap Temporary Ones<\/strong><\/h2>

My co-author Thomas Bernauer and I conducted a public opinion survey (about 3000 participants) to test whether regulations that increase the perceived effectiveness of carbon removal can increase support for it, even if they increase costs. Our survey was fielded in Switzerland and the UK between March and April 2023. Survey participants had to complete a choice experiment embedded in the survey. In this experiment, participants were presented with five randomly generated pairs of carbon removal policies (see Figure 1 for an example of the profile presented to respondents). The policy instruments included the acceptable minimum lifetime of carbon removals eligible for carbon credits (i.e. between 1 and 500 years), the associated uncertainty (i.e. 5 to 20 percent), the inclusion of pilot phases (none to 10 years), connected increases in airline ticket prices (i.e. CHF\/GBP 30 to 190), and government subsidies (i.e. none to 75 percent).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Figure 1<\/strong>: Choice scenario presented to study participants<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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The results show that a majority of our respondents support the implementation of carbon removal standards in Switzerland and the UK. However, this support can vary by around 30 percent depending on the policy design choices made. Policy design choices can therefore make or break the political feasibility of carbon removal regulations from a public opinion perspective.<\/p>

The likelihood of Swiss study participants to support costly, permanent standards for carbon removal was around 60 percent. This is 14 percentage points higher than the likelihood of supporting cheaper temporary carbon removal practices. In the UK, the average likelihood of supporting costly, permanent carbon removal standards was around 65 percent, which is only slightly higher than support for cheaper, temporary standards. Our research suggests that citizens prefer immediate implementation without pilot phases, which they see as a waste of time in the urgent fight against climate change. This contrasts with the experts’ view that pilot programs are essential to test policies and gather necessary knowledge before final implementation. This discrepancy between expert and public opinion shows that just because experts consider a policy to be effective, this is not necessarily the case for citizens.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Figure 2<\/strong>: The average likelihood to support carbon removal certification standards by acceptable storage durability and plane ticket price increases<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Overall, our study implies that once citizens believe that policies encourage effective carbon removal practices over the long term, they are more likely to support them, even if they are costly. Consequently, increasing the perceived effectiveness of climate policies from a public perspective is essential to achieve the costly transition to a net-zero emissions society while maintaining public support for it. Conscious and well-communicated policy design choices by governments can contribute to this.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Cover image: Dominic Wunderlich<\/p>

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Keep up with the Energy Blog @ ETH Zurich on Twitter @eth_energy_blog<\/a>.<\/em><\/p>

Suggested citation: Susanne Rhein. \u201c<\/em>Expensive but Effective: Why Citizens Support Costly but Durable Carbon Removal Practices\u201d, Energy Blog @ ETH Zurich, ETH Zurich, November 18th, 2024, <\/em>https:\/\/blogs.ethz.ch\/energy\/carbon-removal-acceptance\/<\/em><\/a><\/p>

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If you are part of ETH Zurich, we invite you to contribute with your findings and your opinions to make this space a dynamic and relevant outlet for energy insights and debates. Find out how you can contribute<\/a> and contact the editorial team here<\/a> to pitch an article idea!
<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

As climate change accelerates and CO2 emissions reductions alone prove insufficient to meet climate targets, carbon removal has become essential for tackling hard-to-abate emissions. However, deploying carbon removal at scale presents a critical challenge for governments: How can they ensure it is both effective and affordable enough to secure public support? We show that this public support challenge can be overcome if carbon removal practices are deployed in combination with regulations that the public expects to work over the long term, even if these regulations increase costs.<\/p>\n","protected":false},"author":48573,"featured_media":4118,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[264264],"class_list":["post-4117","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-renewable-energy"],"yoast_head":"\nExpensive but effective: Why citizens support costly but durable carbon removal practices - Energy Blog @ ETH Zurich<\/title>\n<meta name=\"description\" content=\"As climate change accelerates and CO2 emissions reductions alone prove insufficient to meet climate targets, carbon removal has become essential for tackling hard-to-abate emissions. However, deploying carbon removal at scale presents a critical challenge for governments: How can they ensure it is both effective and affordable enough to secure public support? We show that this public support challenge can be overcome if carbon removal practices are deployed in combination with regulations that the public expects to work over the long term, even if these regulations increase costs.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.ethz.ch\/energy\/carbon-removal-acceptance\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Expensive but effective: Why citizens support costly but durable carbon removal practices - Energy Blog @ ETH Zurich\" \/>\n<meta property=\"og:description\" content=\"As climate change accelerates and CO2 emissions reductions alone prove insufficient to meet climate targets, carbon removal has become essential for tackling hard-to-abate emissions. 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