How companies measure sustainability variables

09/18/2009 | Wall Street Journal, The

As companies try to measure the carbon footprints of their products to assign them a sustainability rating, one truth is emerging: A precise measurement is impossible. Tesco has begun labeling its private-label milk and faced the difficulty of accounting for the carbon footprint of a cow's milk versus the impact of, say, its beef.

View Full Article in:

Wall Street Journal, The

Published in Brief: