We discuss the use of green nudges – nudges intended to reduce negative externalities – as an environmental policy instrument. A review of empirical studies reveals that green nudges can have a sizeable impact on behavior and the environment, but that the effects are context dependent. In...

The destruction of the Amazon is a major global environmental issue, not only because of greenhouse gas emissions or direct impacts on biodiversity and livelihoods, but also due to the forest’s role as a tipping element of the Earth System. It means that after crossing a biophysical threshold,...

The phenomenon of collective action and the origin of collective action problems have been extensively and systematically studied in the social sciences. Yet, while we have substantial knowledge about the factors promoting collective action at the local level, we know far less about how these...

We evaluate the direct and indirect effects of an environmental educational program with value-laded content on children’s and parents’ knowledge, attitudes and practices regarding the consumption and disposal of plastics. We do this using a randomized field experiment targeting fourth-grade...

We examine how attitudes and willingness to pay (WTP) for climate policies have changed over the past decade in the United States, China, and Sweden. All three countries exhibit an increased willingness to pay for climate mitigation. Ten years ago, Sweden had a larger fraction of believers in...

We conduct a natural field experiment on the effect of having a celebrity endorse an information campaign aiming to induce pro-environmental behavior in the context of single-use plastics consumption. We find that an information campaign does not have a significant effect on behavior unless it...