The Breakthrough Institute (BTI) found that “just 10 organizations initiated 35% of the total NEPA cases brought by NGOs.” The Sierra Club and its local chapters alone were responsible for more than 14% of these lawsuits. The dominance of a small number of groups is more pronounced in forest management and energy cases; only 10 groups filed 67% and 48% of these cases, respectively. In BTI’s  “The Procedural Hangover: How NEPA Litigation Obstructs Critical Projects”  follow-up, which expanded the analysis to district and circuit court NEPA cases, Alliance for the Wild Rockies and the Center for Biological Diversity were responsible for 24% of all litigation against public lands management decisions. To paraphrase Alex Tabarrok, federal environmental agencies seem to exist to manage the obsessions of a tiny number of neurotic—and possibly malicious—environmental NGOs.…