Analysis of temperature trends for the last 100 years in several large U. S. cities has indicated that since -1940 there has been a steady increase in downtown temperatures of O. l-0.5°C per decade (-0.5°C for larger cities like Los Angeles and 0.1°C for smaller cities). Typically, electricity demand in cities increases by 2-4%/°C, hence, about 5-10% of the current urban electricity demand is spent to cool buildings just to compensate for the urban heat island effect. Downtown Los Angeles, for example, is now 3°C warmer than in 1940 leading to an increase in electricity demand of 1500 MW.

Renewable energy, Rational Use of Energy, and Sustainable 'Design are aspects for the coming building programmes, among many other qualitative aspects. How could sustainable use of energy be integrated in planning and building process?

In the Danish building sector, environmental management is currently being introduced in three areas: design, construction and operation of buildings. This innovation is based on development programmes, some of which are in progress, while others have been completed in the last few years. Dissemination and incorporation of the results of these programmes are being closely monitored. Common to all the development programmes is a requirement that employers and companies formulate an environmental policy describing attitudes, goals, priorities and organisation.

The objective of the RESET project was to quantify the savings that could be made by resetting the energy related controls of buildings to their original or optimum settings. The method was to identify a range of office buildings and carry out energy and management audits. Advice was given on incorrectly set controls, and estimates were made of the potential savings if the controls were set correctly. Cost savings of between 10% and 30% were almost always identified and could be made at little or no cost.

The management of environmental quality of school buildings has, for too long, been the overlooked half of the larger whole of the strategic educational planning process. This paper examines the changing role of environmental quality management from its traditional operationally-based role, to an expanded, more dynamic role in strategic educational planning activities at the local, site-based level. First, a brief review of the state of knowledge concerning the impact of environmental quality on the educational process is presented.

Building refurbishment mainly concerns physical and functional building components but should also take into account various topics such as energy consumption, pollutant emission and operational waste reduction as well as air quality and spatial comfort. Against this background, the European project EPIQR offers a new concept which should allow architects to approach the refurbishment of residential buildings with a global view of the whole process. In any refurbishment process, the preparation phase is of utmost importance.

Escalating global environmental deterioration is due in significant part to buildings' share of total environmental burdens - ranging from 15 to 45% of the eight major environmental stressor categories. Therefore, improved building environmental performance could substantially reduce harmful anthropogenic environmental impacts. Previous efforts to address buildings' environmental impacts often lack a science-based approach and claims of "sustainability" or "green design" are often unsupported.

This paper reports on an experimental study dealing with the effects of an automatic shading device on the energetic performance of a dimmable lighting system and on a cooling system. Some equations related to fenestration thermal properties are reformulated under a theoretical approach. In order to collect field data, energy demands and other variables were measured at the "Test Tower" on two distinct floors with identical fenestration features. New data were gathered after adding an automatic shading device to the window of one of the floors.

The problem of optimal insulation thicknesses is one of the simplest that can be addressed by energy analysis. The authors begin with a simple analytical approach, and go on to describe detailed numerical work, based in the definition and parameterisation of a standard dwelling. Sensitivity of the results to large uncertainties in embodied energy data and building lifetime are investigated. The first conclusion is that insulation thicknesses in UK buildings are suboptimal in energy terms. This conclusion appears to be robust.