Can information on inequalities in contributions to climate change modify political support?

Our way of living has led to an unequivocal increase in the earth's surface temperature of about 1.07°C (IPCC, 2021). Contributions to climate change are unequal; the wealthiest have significantly higher carbon footprint than the poorest (Chancel, 2022). In addition, climate change will also be a vector of inequality as the poorest will have more restricted capacity to adapt. To face this challenge, policies that promote profound change in our lifestyles and adaptations will be needed. In this article, we test the effect of a message that provides information on carbon emissions and the capacity to adapt depending on the wealth, on policies‘ support. To do so, we use an experiment in a probabilistic panel, CRONOS-2 French wave. We analyze the effect of providing information on the contributions of the 10% richest and 10% poorest emissions on the support for policies that promote i) the reduction of wealth and income differences, ii) an increase in the money dedicated to climate change, and iii) lastly a policy that will help the poorest to adapt. We make the hypothesis that making these aspects salient can increase policy support. We find that the message increases the support to help the poorest adapt to climate change.