An interview with smart-growth expert and author Anthony Flint.

Thanks to an enterprising presentation by an eco-conscious employee, a health-care giant switched to more-efficient bulbs and saved a wad of dough as a result. Here's how they did it -- and you can, too. By Joel Makower

The Swedish meatball of big-box retail is ready to market its macho environmental goals. By April Streeter

Socially responsible investment strategies serve as the foundation for the United Nations' new Principles for Responsible Investment. But most of the investment management and mutual fund companies who serve socially conscious investors have been operating in a manner consistent with the U.N. Principles for years -- it's what differentiates us in the marketplace.

At a time when many companies are looking for any excuse to market themselves as "sustainability" leaders, why is an industry that's been investing millions in green building over the past five years hiding its involvement? By Amy Westervelt

Making the best green choice for your company's packing involves more than thinking about those three little arrows on the bottom of the box, says Joel Makower.

Several decades of huffing and puffing by environmentalists is now forcing builders to think green. By Oliver Balch

Hotels lag behind other travel sectors in responsible tourism -- and uptake is particularly slow in North America. But several small companies and a few large chains are demonstrating leadership. By Lisa Roner

As carbon dioxide emissions from the Japanese transportation sector continue to climb, Kyoto-based Sagawa Express is answering the call for a cleaner trucking company. By Kazunori Kobayashi

Why should sustainability be important to a company's shareholders? Find out from Carsten Henningsen, chairman of Progressive Investment Management and founder of Portfolio 21, a global mutual fund that invests in sustainability-minded companies.