The document discusses sustainability practices in business, specifically focusing on marketing. It outlines three key sustainable practices: corporate social responsibility, eco-efficiency, and green procurement. Corporate social responsibility involves community involvement and transparency efforts that improve a company's public image. Eco-efficiency aims to create high-quality products while improving environmental performance. Green procurement, or green buying, refers to purchasing environmentally-friendly products and services. While these practices are important, tensions can exist between sustainability and economic factors like cost and competitiveness. The document argues all businesses, including small businesses, should be involved in sustainability efforts to preserve the environment for future generations.