Ulf J J Hahnel
Biographic Data
| ID | 1581245 |
|---|---|
| NAME | Ulf J J Hahnel |
| GIVEN NAMES | Ulf J J |
| FAMILY NAME | Hahnel |
| SIGNATURE | HAHNEL U J J |
| AFFILIATIONS | University of Geneva |
| ORCID | 0000-0002-0595-5899 |
| VERIFIED | Yes |
| TOTAL WORKS | 16 |
| TOTAL CITATIONS | 7 |
| WORKS AS AUTHOR | 16 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2015 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Making flexibility acceptable
Achieving net-zero emissions targets requires greater use of renewable electricity as well as behavioral adjustments by customers to help manage the variability of renewable energy supply. New forms of electricity tariffs can promote a more affordable and effective use of renewable electricity. This can be achieved by encouraging flexibility provision, for instance by enabling automated shifting of electricity consumption to off-peak periods with…
Towards self-sufficiency
Prosumer households can play a pivotal role in advancing energy sufficiency, but their behaviours are shaped not only by individual motivation,s but also by macro-level factors such as policy mixes and the availability of specific technologies and business models. This structure–agency nexus becomes particularly apparent in the integration of decentralized energy sources, the reduction of overall demand, and the adoption of flexible consumption p…
Perceived plasticity of climate-relevant behaviors and policy support among high- and lower-income individuals
Surveys in four countries reveal diverse patterns in perceived behavioral plasticity. • Results highlight the context-dependence of climate behavior feasibility. • Links individual behavior change potential to support for climate policy. • High-income individuals show stronger links between plasticity and policy support. Widespread behavior change is essential for mitigating climate change. This study explores how country and income differences a…
Development and test of a dual-pathway model of personal and community factors driving new energy technology adoption - The case of V2G in three European countries
Sampling and processing of climate change information and disinformation across three diverse countries
In the media, accurate climate information and climate disinformation often coexist and present competing narratives about climate change. Whereas previous research documented detrimental effects of disinformation on climate beliefs, little is known about how people seek climate‐related content and how this varies between cross‐cultural contexts. In a preregistered experiment, we studied how individuals sequentially sample and process Pro‐ and An…
Blueprint of a smokescreen
Behavioural science research has the potential to develop evidence-based strategies to fight disinformation about climate science and climate mitigation action; however, this research has yet to be conducted systematically with validated sets of climate disinformation stimuli. Here, we present the Climate Disinformation Corpus, a collection of climate disinformation statements designed to systematize experimental research testing future disinform…
Addressing climate change with behavioral science
Effectively reducing climate change requires marked, global behavior change. However, it is unclear which strategies are most likely to motivate people to change their climate beliefs and behaviors. Here, we tested 11 expert-crowdsourced interventions on four climate mitigation outcomes: beliefs, policy support, information sharing intention, and an effortful tree-planting behavioral task. Across 59,440 participants from 63 countries, the interve…
Underestimation of personal carbon footprint inequality in four diverse countries
Extensive research highlights global and within-country inequality in personal carbon footprints. However, the extent to which people are aware of these inequalities remains unclear. Here we use an online survey distributed across four diverse countries: Denmark, India, Nigeria and the USA, to show widespread underestimation of carbon footprint inequality, irrespective of participants’ country and income segment. Of the 4,003 participants, within…
Realizing the full potential of behavioural science for climate change mitigation
A trust inoculation to protect public support of governmentally mandated actions to mitigate climate change
In a world barreling down into a worsening climate crisis, negative persuasive attacks to necessary climate policies are major threats to the public's support of governmental mandates to mitigate climate change. To protect against such attacks, here we introduce and investigate the effect and the treatment heterogeneity of the trust inoculation, a psychological inoculation strategy designed around the influence of trust as a key social dimension …
Psychological inoculation strategies to fight climate disinformation across 12 countries
Decades after the scientific debate about the anthropogenic causes of climate change was settled, climate disinformation still challenges the scientific evidence in public discourse. Here we present a comprehensive theoretical framework of (anti)science belief formation and updating to account for the psychological factors that influence the acceptance or rejection of scientific messages. We experimentally investigated, across 12 countries (N = 6…
The effectiveness of nudging
Significance Changing individuals’ behavior is key to tackling some of today’s most pressing societal challenges such as the COVID-19 pandemic or climate change. Choice architecture interventions aim to nudge people toward personally and socially desirable behavior through the design of choice environments. Although increasingly popular, little is known about the overall effectiveness of choice architecture interventions and the conditions under …
From values to emotions
Emotions and values are fundamentally connected. They both are psychological markers of subjective relevance and are thought to be deeply functionally intertwined: According to appraisal theories of emotion, emotions arise when value concerns are at stake; according to theories of value, a value that is threatened or supported gets infused with feelings. Surprisingly, while these assumptions are considered well established by researchers in the r…
Validity of energy social research during and after Covid-19
What motivates people to use energy feedback systems? A multiple goal approach to predict long-term usage behaviour in daily life
Intentions to adopt photovoltaic systems depend on homeowners' expected personal gains and behavior of peers
Psychological inoculation strategies to fight climate disinformation across 12 countries
Decades after the scientific debate about the anthropogenic causes of climate change was settled, climate disinformation still challenges the scientific evidence in public discourse. Here we present a comprehensive theoretical framework of (anti)science belief formation and updating to account for the psychological factors that influence the acceptance or rejection of scientific messages. We experimentally investigated, across 12 countries (N = 6…
Development and test of a dual-pathway model of personal and community factors driving new energy technology adoption - The case of V2G in three European countries
Blueprint of a smokescreen
Behavioural science research has the potential to develop evidence-based strategies to fight disinformation about climate science and climate mitigation action; however, this research has yet to be conducted systematically with validated sets of climate disinformation stimuli. Here, we present the Climate Disinformation Corpus, a collection of climate disinformation statements designed to systematize experimental research testing future disinform…
A trust inoculation to protect public support of governmentally mandated actions to mitigate climate change
In a world barreling down into a worsening climate crisis, negative persuasive attacks to necessary climate policies are major threats to the public's support of governmental mandates to mitigate climate change. To protect against such attacks, here we introduce and investigate the effect and the treatment heterogeneity of the trust inoculation, a psychological inoculation strategy designed around the influence of trust as a key social dimension …
Intentions to adopt photovoltaic systems depend on homeowners' expected personal gains and behavior of peers
What motivates people to use energy feedback systems? A multiple goal approach to predict long-term usage behaviour in daily life
Validity of energy social research during and after Covid-19
The effectiveness of nudging
Significance Changing individuals’ behavior is key to tackling some of today’s most pressing societal challenges such as the COVID-19 pandemic or climate change. Choice architecture interventions aim to nudge people toward personally and socially desirable behavior through the design of choice environments. Although increasingly popular, little is known about the overall effectiveness of choice architecture interventions and the conditions under …
From values to emotions
Emotions and values are fundamentally connected. They both are psychological markers of subjective relevance and are thought to be deeply functionally intertwined: According to appraisal theories of emotion, emotions arise when value concerns are at stake; according to theories of value, a value that is threatened or supported gets infused with feelings. Surprisingly, while these assumptions are considered well established by researchers in the r…
Psychological inoculation strategies to fight climate disinformation across 12 countries
Decades after the scientific debate about the anthropogenic causes of climate change was settled, climate disinformation still challenges the scientific evidence in public discourse. Here we present a comprehensive theoretical framework of (anti)science belief formation and updating to account for the psychological factors that influence the acceptance or rejection of scientific messages. We experimentally investigated, across 12 countries (N = 6…
Addressing climate change with behavioral science
Effectively reducing climate change requires marked, global behavior change. However, it is unclear which strategies are most likely to motivate people to change their climate beliefs and behaviors. Here, we tested 11 expert-crowdsourced interventions on four climate mitigation outcomes: beliefs, policy support, information sharing intention, and an effortful tree-planting behavioral task. Across 59,440 participants from 63 countries, the interve…
Underestimation of personal carbon footprint inequality in four diverse countries
Extensive research highlights global and within-country inequality in personal carbon footprints. However, the extent to which people are aware of these inequalities remains unclear. Here we use an online survey distributed across four diverse countries: Denmark, India, Nigeria and the USA, to show widespread underestimation of carbon footprint inequality, irrespective of participants’ country and income segment. Of the 4,003 participants, within…
Realizing the full potential of behavioural science for climate change mitigation
A trust inoculation to protect public support of governmentally mandated actions to mitigate climate change
In a world barreling down into a worsening climate crisis, negative persuasive attacks to necessary climate policies are major threats to the public's support of governmental mandates to mitigate climate change. To protect against such attacks, here we introduce and investigate the effect and the treatment heterogeneity of the trust inoculation, a psychological inoculation strategy designed around the influence of trust as a key social dimension …
Towards self-sufficiency
Prosumer households can play a pivotal role in advancing energy sufficiency, but their behaviours are shaped not only by individual motivation,s but also by macro-level factors such as policy mixes and the availability of specific technologies and business models. This structure–agency nexus becomes particularly apparent in the integration of decentralized energy sources, the reduction of overall demand, and the adoption of flexible consumption p…
Perceived plasticity of climate-relevant behaviors and policy support among high- and lower-income individuals
Surveys in four countries reveal diverse patterns in perceived behavioral plasticity. • Results highlight the context-dependence of climate behavior feasibility. • Links individual behavior change potential to support for climate policy. • High-income individuals show stronger links between plasticity and policy support. Widespread behavior change is essential for mitigating climate change. This study explores how country and income differences a…
Development and test of a dual-pathway model of personal and community factors driving new energy technology adoption - The case of V2G in three European countries
Sampling and processing of climate change information and disinformation across three diverse countries
In the media, accurate climate information and climate disinformation often coexist and present competing narratives about climate change. Whereas previous research documented detrimental effects of disinformation on climate beliefs, little is known about how people seek climate‐related content and how this varies between cross‐cultural contexts. In a preregistered experiment, we studied how individuals sequentially sample and process Pro‐ and An…
Blueprint of a smokescreen
Behavioural science research has the potential to develop evidence-based strategies to fight disinformation about climate science and climate mitigation action; however, this research has yet to be conducted systematically with validated sets of climate disinformation stimuli. Here, we present the Climate Disinformation Corpus, a collection of climate disinformation statements designed to systematize experimental research testing future disinform…
Making flexibility acceptable
Achieving net-zero emissions targets requires greater use of renewable electricity as well as behavioral adjustments by customers to help manage the variability of renewable energy supply. New forms of electricity tariffs can promote a more affordable and effective use of renewable electricity. This can be achieved by encouraging flexibility provision, for instance by enabling automated shifting of electricity consumption to off-peak periods with…
Environmental Education and Sustainability (8 works) · Climate Change Communication and Perception (7 works) · Psychology (7 works) · Climate change (6 works) · Behavioral Health and Interventions (4 works) · Economics (4 works) · Social Psychology (4 works) · Business (3 works) · Computer Science (3 works) · Disinformation (3 works)