Light pollution is a global threat to biodiversity, especially migratory organisms, some of
which traverse hemispheric scales. Research on light pollution has grown significantly over …

We commonly think of information as a means to an end. However, a growing theoretical
and experimental literature suggests that information may directly enter the agent's utility …

This paper studies how people across the world perceive and understand climate change
and climate policies, which factors determine their support for climate action, and what type …

This report is an attempt to comprehensively examine information disorder and its related
challenges, such as filter bubbles and echo chambers. While the historical impact of …

Social media platforms have been found to be the primary gateway through which
individuals are exposed to fake news. The algorithmic filter bubbles and echo chambers that …

As the Internet grows more sophisticated, it is creating new threats to democracy. Social
media companies such as Facebook can sort us ever more efficiently into groups of the like …

In a large-scale, preregistered experiment on informal political communication, we
algorithmically matched participants, varying two dimensions: 1) the degree of incidental …

Recent shifts in the media ecosystem raise new concerns about the vulnerability of
democratic societies to fake news and the public's limited ability to contain it. Fake news as a …

Social media are often accused of worsening the quality of online debate. In this paper, we
focus on group polarization in the context of social media-enabled interaction, a …

A surprising finding from US opinion surveys is that political disagreements tend to be
greatest among the most cognitively sophisticated opposing partisans. Recent experiments …