Shortly after being elected president, Joe Biden made a sweeping promise on environmental justice: With a 2021 executive order, he vowed that a full 40 percent of the benefits of certain federal government climate and environmental investments would reach historically disadvantaged communities. This initiative, known as Justice40, was the centerpiece of the administration’s environmental justice efforts and was intended to compensate for both underinvestment and environmental harms that have disproportionately burdened communities of color throughout U.S. history.
Justice40 is striking both for the simplicity and specificity of its objective and also for the big open questions that the goal depends on. For one, Justice40 was conceived before hundreds of billions of dollars in climate funding were unlocked by the passage of the Bipartisan…