The State of the World (SoW) was a series of books published annually from 1984 to 2017 by the U.S. based Worldwatch Institute, a thinktank that was founded in the 1970s by renowned environmentalist Lester R. Brown and ceased operations in 2017. The series attempted to identify the planet's most significant environmental challenges.

The 2010 edition discussed different ways of changing current cultures such that it felt as natural to live sustainably as living as a consumer felt at the time. The 2011 edition looked at the global food crisis and surrounding environmental and social problems, with a particular emphasis on global innovations that could help solve that worldwide problem. The 2012 edition showcased innovative projects, creative policies, and fresh approaches that were advancing sustainable development in the twenty-first century. The 2013 edition defined the term sustainability, and assessed attempts to cultivate it.