Limiting future temperature increases and associated climate change requires immediate action to prevent additional carbon dioxide being released into the atmosphere and to lower the existing atmospheric carbon dioxide load. This could be advanced through carbon capture and storage (CCS), which involves collecting carbon dioxide that would otherwise be released by power plants or similar facilities and injecting it into underground geologic formations, where it will remain permanently sequestered.

Cooperative federalism can lead to more efficient and pragmatic environmental protection, and allow states to develop effective programs tailored to their needs and resources. Nevertheless, the future of the federal-state relationship in the environmental context is uncertain as state and federal priorities come into conflict: for instance, EPA’s proposal to revoke California’s authority to regulate tailpipe emissions of greenhouse gases. Recent reports have begun a discussion on the future of cooperative federalism and environmental protection, but significant questions remain unanswered.