Recent studies suggest natural gas is significantly more carbon-intensive than previously realized, with methane having at least 25 times the warming potential of carbon dioxide. If the United States is to meet greenhouse gas reduction goals, it must curtail methane leakage between 30% and 90%, and leakage is anticipated to cost producers $2 billion each year in lost product. Absent regulations from the federal government and many states, nongovernmental organizations and the private sector are developing innovative solutions.

There is significant research literature that has studied the civil enforcement process, but we still have a poor understanding of how the Agency uses its criminal enforcement tools to enforce compliance with CERCLA. We work to fill this gap by exploring charging and sentencing patterns in federal CERCLA prosecutions.