arcCA (Architecture California) was, from 2000 to 2012, the quarterly print journal of the AIA California Council. For this season of arcCA DIGEST, dedicated to health, we revisit two issues of arcCA.

As design professionals, we’ll need to make up our own minds as to the validity of the conflicting messages we manage to extract from the noise. Emerging from the pervasive clamor of today’s PVC debate is yet another buzz, the voice of the precautionary principle. . . . Principle 15 of the Rio Declaration on Environment and Development of 1992 states: “In order to protect the environment, the precautionary approach shall be widely applied by States according to their capabilities. Where there are threats of serious or irreversible damage, lack of full scientific certainty shall not be used as a reason for postponing cost-effective measures to prevent environmental degradation.”
The application of this principle, she concludes, “will assuredly be the measure by which we guide, not squelch, the technological ingenuity we so value in our culture.”

From arcCA DIGEST Season 03, “Health.”





