Life vs. Life-Cycle

October 30, 2007 | Filed Under Bill McDonough, GreenIT, Life-Cycle, biological nutrients, carbon, personal computers, sustainable | No Comments

A very interesting presentation on carbon Life-Cycle Assessment from the CITRIS Research Exchange at UC Berkeley is available on-line. The talk is on how to send the right signals to consumers and drive environmentally sustainable purchasing. A major take-away is how little analytical work has been on tools for environmental LCA’s for consumer products … and how daunting a challenge it will be to create those tools.

One example highlighted in the presentation was Personal Computers. Their research shows 65% of the life-cycle carbon footprint of a PC comes from the “Production” phase. This data is consistent with other information suggesting less than 20% of the electricity consumed by a PC is actually from the “Use” phase of its lifetime.

While there is no question everything that can be done to reduce energy use by IT systems in operation should be done … and quickly. In the long run, “sustainability” for IT will mean learning to build products that use all natural resources far more efficiently, keeping those products in service for longer useful lives, and following Bill McDonough’s vision to make sure that at the end of life IT products return to the production cycle as technical or biological nutrients.