We examine individuals' willingness to pay to offset their carbon footprint (WTPO) in response to receiving information about (i) their own carbon footprint size (size nudge), and (ii) receiving information about their own carbon footprint size and the gap with per-capita GHG emissions consistent with the 1.5 °C target (distance-to-target nudge). We employ a demographically representative online survey among the adult population in Germany which includes a carbon footprint calculator and the randomized information nudges. Results from estimating double-hurdle regression models suggest that the size nudge increases participants' average WTPO by about one third. Yet, we find only limited support that the distance-to-target nudge affects participants' WTPO. We further find that participants' response to the information nudge is primarily effective for younger participants, females, participants with mid-range income, with high levels of education, and with low to medium-sized carbon footprints, ceteris paribus. Further, the WTPO is positively related with income, education, carbon literacy, and environmental preferences. Also, participants tend to underestimate the size of their carbon footprint relative to that of others. We find no evidence, however, that participants' WTPO depends on whether they believe that their carbon footprint is lower or higher than that of others.

中文翻译：

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支付意愿与碳足迹知识之间的关系：如果个人了解碳足迹的规模以及距离 1.5°C 目标的距离，他们是否愿意支付更多费用来抵消其碳足迹？

我们检查个人支付抵消其碳足迹（WTPO）的意愿，以响应收到有关（i）他们自己的碳足迹大小（大小微调）的信息，以及（ii）收到有关他们自己的碳足迹大小和与碳足迹差距的信息。人均温室气体排放量与 1.5 °C 目标一致（目标距离微调）。我们对德国成年人口进行了一项具有人口代表性的在线调查，其中包括碳足迹计算器和随机信息推送。双栏回归模型的估计结果表明，规模微调使参与者的平均 WTPO 增加了约三分之一。然而，我们仅发现有限的证据表明距目标的距离会影响参与者的 WTPO。我们进一步发现，在其他条件不变的情况下，参与者对信息推动的反应主要对年轻参与者、女性、中等收入、受教育程度高、碳足迹中低的参与者有效。此外，WTPO 与收入、教育、碳素养和环境偏好正相关。此外，参与者往往会低估自己相对于其他人的碳足迹的大小。然而，我们没有发现任何证据表明参与者的 WTPO 取决于他们是否认为自己的碳足迹低于或高于其他人。