As advocates place hope in international climate change litigation, what lessons may be drawn from over two decades of efforts to litigate socio-economic rights? Both types of litigation envision a role for courts in solving fundamental societal questions that involve complicated policy responses and far-reaching consequences for societal and economic structures. Among the challenges faced by courts adjudicating socioeconomic rights are over-individualization and unintended regressive outcomes.Innovative procedures and remedies have been developed, but courts, both at the national and international level, have often failed, or declined, to address underlying structural problems. The article identifies pitfalls that climate change litigation might avoid and best practices on which to build. It also explores what the experience of socio-economic rights litigation cautions in terms of expectations of success through litigation.