If you google it, wikipedia might help you out:
[article]
Laws from every stratum of the
laws of the United States pertain to environmental issues. Congress has passed a number of landmark environmental regulatory regimes, but many other federal laws are equally important, if less comprehensive. Concurrently, the legislatures of the fifty states have passed innumerable comparable sets of laws.
[5] These state and federal systems are foliated with layer upon layer of administrative regulation. Meanwhile, the US judicial system
reviews not only the legislative enactments, but also the administrative decisions of the many agencies dealing with environmental issues.
Where the statutes and regulations end, the common law begins.
[6]
Federal statutes[edit]
Main article:
List of United States Federal Environmental Statutes
See also:
Environmental policy of the United States
Federal regulation[edit]
Consistent with the federal statutes that they administer, US federal agencies promulgate regulations in the
Code of Federal Regulations that fill out the broad programs enacted by Congress. Primary among these is
Title 40 of the Code of Federal Regulations, containing the regulations of the
Environmental Protection Agency (EPA). Other important CFR sections include Title 10 (energy), Title 18 (Conservation of Power and Water Resources), Title 21 (Food and Drugs), Title 33 (Navigable Waters), Title 36 (Parks, Forests and Public Property), Title 43 (Public Lands: Interior) and Title 50 (Wildlife and Fisheries).
Judicial decisions[edit]
See also:
List of environmental lawsuits
The federal and state judiciaries have played an important role in the development of environmental law in the United States, in many cases resolving significant controversy regarding the application of federal environmental laws in favor of environmental interests. The decisions of the
Supreme Court in cases such as
Calvert Cliffs Coordinating Committee v. U.S. Atomic Energy Commission (broadly reading the procedural requirements of NEPA),
Tennessee Valley Authority v. Hill (broadly reading the
Endangered Species Act), and, much more recently,
Massachusetts v. EPA (requiring EPA to reconsider
regulation of greenhouse gases under the Clean Air Act) have had policy impacts far beyond the facts of the particular case.
Common law[edit]
The common law of
tort is an important tool for the resolution of environmental disputes that fall beyond the confines of regulated activity. Prior to the modern proliferation of environmental regulation, the doctrines of
nuisance (public or private),
trespass,
negligence, and
strict liability apportioned harm and assigned liability for activities that today would be considered pollution and likely governed by regulatory regimes.
[7] These doctrines remain relevant, and most recently have been used by plaintiffs seeking to impose liability for the consequences of global climate change.
[8]
The common law also continues to play a leading role in American
water law, in the doctrines of
riparian rights and
prior appropriation.
[/article]
So for all intents and purposes the common law doesn't come into play when you have a regulation in it's place. If you read the descriptions of federal regulations, compare them with the description of judicial decisions and common law, and having read them, if you then tell me you think regulations are better and you'd prefer to have them instead of the law, then I don't know what to tell you other than you're delusional.