There is a widespread consensus among the most important players in developed countries (voters, politicians, producers, traditional and green interest groups and bureaucracies) that a shift towards an eco-social market economy is essential for sustainable growth. Nevertheless, market-based instruments have not as yet been implemented satisfactorily in environmental policy. To identify the reas...

This essay presents an analysis of the evolution of environmental health management in Colombia, covering the period from the introduction of the Colombian Healthcare Code (1979) to laws 99 and 100 in 1993 and the introduction of Environmental Health Policy in Bogotá DC (2011). It proposes a conceptual model for environmental health management at three levels: proximal (physical, chemical and b...

Society is at a critical juncture in its relationship with the natural environment, a relationship in which tourism has growing significance. Yet, twenty years after the Brundtland Report, environmental policy has to date had little influence upon the workings of the tourism market, the supply and demand elements of which determine the ‘use’ or ‘non-use’ of nature. Inherent to the market is its...

Previous introductions of new technologies have frequently resulted in unanticipated occupational and environmental illness. Prevention of such illness in the twenty-first century requires stringent application of two fundamental principles of public health: evaluation of new technologies before their introduction, and surveillance of exposed persons after the introduction of new technologies. ...

One-Fifth of the population of the world live in China. China is the biggest developing country in the world. China also has a higher biodiversity and is the most abundant World Natural and Cultural Heritage country, so Chinese environmental protection is very important to the globe. China is facing the crucial period of developing the economy and protecting the environment. At present in China...

The natural environment affects the construction of desert highways. Conversely, highway construction affects the natural environment and puts the ecological environment at a disadvantage. To satisfy the variety and hierarchy of desert highway construction and discover the spatio-temporal distribution of the natural environment and its effect on highway construction engineering, an assessment o...

On the occasion of the 50th anniversary of the National Institutes of Environmental Health Sciences we reflect on how environmental research incorporating community members as active partners has evolved, benefited communities and advanced environmental health research. We highlight the commitment to community partnerships in the aftermath of the 2010 Deep Water Horizon Oil Spill, and how that ...

We demonstrate that magnetically collimated protostellar winds will sweep ambient material into thin, radiative, momentum-conserving shells whose features reproduce those commonly observed in bipolar molecular outflows. We find that the typical position-velocity and mass-velocity relations occur in outflows in a wide variety of ambient density distributions, regardless of the time histories of ...