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Procure Products

in the Green Procurement Compilation

Learn & Plan Topics

  • Buildings and Health

    The challenge for building design and operations is to identify and eliminate health risks while also providing positive physical, emotional, and...

  • Circadian Light

    Circadian rhythms are physiological processes that occur in the body approximately every 24-hours. Medical research has linked circadian disrup...
  • The Importance of Daylight

    While many people prefer to be in spaces with abundant daylight, a critical question is to what extent the benefits of daylight matter to those who ...
  • Sustainable Sites

    Choosing a building's site and managing that site during construction are important to ensure a project’s sustainability. Environmentally r...

  • Best Practices & Case Studies

    One of the best ways to learn and make the case for green building innovations is to point to others’ experience in implementing these innovat...

Green Products

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Circadian light

Circadian rhythms are biological processes that are generated and regulated by a biological clock located in the brain. These biological processes include body temperature, digestion, release of certain hormones, and a person’s wake/sleep cycle. In the absence of external cues, circadian rhythms in humans will run with a period close to, but not exactly 24 hours (in humans, circadian rhythms cycle every 24.2 hours without exposure to light). If a person does not receive enough light, their circadian rhythms become desynchronized with the local day-night cycle.

Learn more about Circadian Light.

Whole Building Systems

  • Lighting - Lighting Impact on Occupants

    Lighting Ecosystem Lighting in the workplace can be better understood as an ecosystem that includes lighting design as just one component of a netw...

  • Lighting - Health

    Poorly designed lighting systems, characterized by uncomfortable fluctuations in luminance levels or excessive glare, causes visual discomfort and l...


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