Each year, a number of new companies emerge offering cutting-edge solutions to today's environmental challenges. Tailings, rock waste, emissions, acid rock drainage, water usage, reclamation, and energy are a few of the many issues being tackled by today's mining industry. Some of the latest developments and on-going projects are discussed in the September 2003 (Vol. 96 Number 1073) issue of CIM Bulletin (pps. 21-29).