Her work spans a variety of topics related to climate change mitigation and adaptation, sustainable development, and environmental justice. Much of her research focuses on how existing U.S. laws — such as the Clean Air Act and the National Environmental Policy Act — can be used to address the causes and impacts of climate change. She has also written on the nexus between climate change and human rights law. In addition to her scholarship, Jessica maintains online resources such as the Climate Deregulation Tracker.