It makes business sense. Make your business more competitive - cutting costs can lead to overall efficiency gains. Many top companies believe that you can't manage what you don't measure. Reporting on environmental performance can help focus attention on cutting waste and energy use so costs are lower. Meaningful environmental reporting should be a part of an effective communication strategy and not just a public relations exercise.
All companies do have an environmental impact.
Carbon dioxide is the major greenhouse gas contributing to global warming. The disposal of computers, printers and other equipment is also becoming an important issue. The average office worker generates over half a kilo of scrap paper every day. But my job is to worry about customers, not the environment. The business climate is changing.