Some companies have thrived by marketing product lines as environmentally correct or "green." A prime example is Body Shop, a cosmetics company that is strongly and explicitly pro-environment with regard to its products. It strives, for instance, to develop products made with substances derived from threatened tropical rain forests so that they can be preserved.

The American ice cream manufacturer, Ben and Jerry's, has adopted a similar approach to using rain forest products in what it sells. Mercury- and cadmium-free batteries have been marketed by Varta, a German company. Ecover, a small Belgian company, made major sales gains when it began to market a line of phosphate-free detergents. Wal-Mart is another company that provides its customers with green products. Loblaw, a Canadian grocery chain, has introduced a "green-line" of environmentallyfriendly products and has sold more than twice the amount than it had initially projected. Seventh Generation...