Is an intentional temporary deprivation of the use of land not a "temporary taking"? This proposition was asserted by a panel of the U.S. Court of Appeals for the Ninth Circuit in Tahoe-Sierra Preservation Council, Inc. v. Tahoe Regional Planning Agency. The Ninth Circuit denied en banc review, despite a strong dissent by Judge Alex Kozinski. Perhaps because it had never explicated the meaning of "temporary taking," and perhaps in part because its interest was kindled by the Kozinski dissent, the U.S. Supreme Court recently granted certiorari. The question is limited to:

The government use of compulsory purchase and land use control powers appears to be increasing worldwide as competition for useable and livable space increases. The need for large and relatively undeveloped space for agriculture and conservation purposes often competes with the need for shelter and the commercial and industrial development accompanying such development for employment, product production and distribution, and other largely urban uses.

Editors' Summary: Property rights advocates implicitly complained in Babbitt v. Sweet Home Chapter of Communities for a Great Oregon that a Fish and Wildlife Service regulation that aimed to protect endangered and threatened species by defining "harm" to include habitat modification impinged on their rights as private landowners by asking them to share with the government responsibility for protecting such species. The U.S. Supreme Court upheld the regulation as reasonable given the relevant language of the Endangered Species Act.

The bedrock notion that courts should, in the overwhelming majority of cases, defer to lawmakers is currently under attack in the nation's courts, commentary, and classrooms. Leading the way are several U.S. Supreme Court Justices who, in cases involving the U.S. Commerce Clause, Takings Clause, and §5 of the Fourteenth Amendment of the U.S. Constitution, are much more willing than their immediate predecessors to second-guess the motives and tactics of elected and appointed officials at all levels of government.

Editors' Summary: Although most talk in terms of wildlife protection seems to focus on the operation of the ESA, there are a host of other federal and state laws designed to protect wildlife from the impacts of resource-development projects—before the species become threatened or endangered.

One of the most fundamental tenets of toxicology is that "the dose determines the poison." This simple phrase provides the basis for the belief that all agents—chemicals and physical phenomena that are capable of producing some effect—have the potential to cause toxicity. Whether toxicity actually occurs is principally a matter of dose: the greater the exposure to a given agent, the more pronounced or severe the response of a cell or organism.

[Editors' Summary: This Article is adapted from The Law of Green Buildings: Regulatory and Legal Issues in Design, Construction, Operations, and Financing ch. 2 (J. Cullen Howe & Michael B. Gerrard eds., 2010). Copyright © 2010 by the American Bar Association and co-published with ELI Press. Reprinted by permission. This book provides an overview of green building law from a variety of well-known attorneys and other professionals in the green building field. These legal issues are likely to evolve quickly—and perhaps radically—in the coming years.