Fig. 2: Trends in environmental litigation.
From: Outcomes and policy focus of environmental litigation in the United States
Trend lines are estimated using local polynomial regression fitting (locally estimated scatterplot smoothing (LOESS)). The shaded area indicates the 95% confidence interval for the LOESS estimate. a, Number of cases filed annually by plaintiff type. b, Average case duration in days by plaintiff type. Data are truncated in 2019 because dismissals and settlements bias the recent case duration average downwards, while many cases that go to trial remain unresolved. c, Average win rate by plaintiff type. Intra-type suits (for example, firms suing other firms) are excluded (Methods).
