What are Environmental Consultants? Environmental consultants work in the quality management sector of environmental issues. The role of an environmental consultant is to give professional advice and prepare written reports for both internal and external clients on diversersified environmental issues. Environmental consultants write desk studies and due diligence reports on contaminated land and usually have a bachelors or masters degree in environmental science. Fundamentally, Environmental Consultants make certain that all air, water and land standards of quality are being met by major plants, corporations and land-development firms.