Elected officials increasingly communicate across multiple social media platforms. We argue that platforms are not neutral channels: the same political pressures can be expressed differently across them. Using 6.19 million Facebook and X posts from 6,356 U.S. state legislators, we examine climate attention and stance. Ideology structures climate communication differently across platforms: in 2020–2021, liberal legislators devote substantially more climate attention on X, whereas ideological differences in climate stance are stronger on Facebook.
How does public climate change concern and policy preferences affect climate policy outputs? Prevailing explanations regarding the adoption of climate change (mitigation) policies often focus on collective action, institutions, distributive politics, and policy diffusion. Despite being the focus of many studies on public policy in other issue areas, the role of public opinion on national climate policy has not been studied simply because of a lack of survey questions repeated consistently across years and countries.