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Data from the Global Environmental Monitoring System indicate that pollutants such as sulphur dioxide and total suspended particulate routinely appear in the lower atmosphere of major cities at concentrations well above health guidelines set by the World Health Organization. As well, cities are major contributors to the build-up of greenhouse gases which now threaten climate change. These findings underscore the detrimental relation that has evolved between urban industrial society and the atmosphere. If this peculiar civilization is to be changed, three principles—equity, sustainability and peaceful development—must guide the reevolution of urban life. The paradigm of commodification needs to be replaced with a model of a commons of life. The article provides a theoretical framework and strategy for reforming global climate policy and urban sustainability planning in a manner consistent with life in the commons.

Organizational learning is a popular topic in business and academia and attracts many researchers and practitioners from different fields. Even though organizational learning scholarship is still growing, there are few studies that cross-fertilize social cognition and organizational learning. This investigation examines organizational learning from the perspective of social cognition. It is argued that social cognition explains the organizational learning process better by integrating fragmented studies on the processes of learning, and the study proposes that organizational learning is an outcome of reciprocal interactions of the processes of information/knowledge acquisition, information/knowledge dissemination, information/knowledge implementation, sensemaking, memory, thinking, unlearning, intelligence, improvisation, and emotions - connected by organizational culture. In addition, the implications of social cognition on organizational learning are discussed.

Solar energy is considered by many an attractive and practical option for America's energy future, one that is technically and commercially feasible as well as socially and environmentally desirable. Sun-generated power could meet upwards of 20 percent of U.S. energy needs by the year 2000--but only if there is a concerted national effort to use this energy option. The issues of implementation and the public and private initiatives needed to facilitate a transition to extensive use of solar energy are the focus of this volume. The solar transition is addressed from the diverse perspectives of the many necessary participants: industries and small businesses; local, state, regional, and federal governments; public utilities; policy analysts; and solar advocates. The contributors assess the extent to which solar alternatives can replace and augment other energy forms, the pace and pattern for solar commercialization, and the roles of public and private institutions in carrying out the transition. A consensus becomes apparent: Although the transition to solar energy is technically and commercially viable, its success depends on concerted public and private efforts to promote innovation and diversification in energy production and distribution and to institute major changes in public policy related to energy use.

Radiotherapy is a safe treatment; nevertheless, national reporting of serious incidents allows investigation of potential harm to individuals and failing safety culture. UK guidance has previously been limited to overexposures, but underexposures will be included in the new legislation, and positioning errors have also been explicitly included in recent guidance. This commentary reviews current guidance and suggests practical approaches to the additional categories, including the definition of a local error margin.

Climate change presents a fundamental challenge to the current global energy regime. Under the Framework Convention on Climate Change, the international community is developing the architecture of a policy response. Three serious flaws are examined: (a) the potential sacrifice of small island states, (b) the use of market-based policy measures to commodify the atmospheric commons, and (c) the substitution of carbon sequestration for meaningful reductions in energy use. The authors' analysis of the politics of climate change, based on these issues, suggests a new understanding of ecology is emerging—what they term postmodern ecology—in which a global environmental crisis is risked to secure the future of the world energy regime. An alternative, based on principles of sustainability and equity, is proposed that would require abandoning the global energy status quo.