Introduction -- Historical context of private and public nuisance at law and equity -- Shifting mass tort theories in the 1990s and the judicial resistance to the expansion of public nuisance liability -- Expanding public nuisance doctrine : inroads and retreats, the lead paint mass tort litigation -- Litigating public nuisance claims : burdens on plaintiffs -- Expanding public nuisance doctrine : defenses -- Expanding public nuisance : remedies beyond injunctions and abatement to monetary damages -- Environmental contamination, PCBs, and climate change as public nuisance harms -- Opioids as public nuisance health and welfare harm -- Firearms violence as a public nuisance -- E-cigarettes and vaping as a public nuisance harm -- Evaluating the competing arguments regarding the contemporary use of public nuisance in mass tort litigation -- Conclusion.