The Greenhouse Challenge -- launched in 1995 -- is a joint voluntary initiative between the national Government and industry to abate greenhouse gas emissions. Participating organisations sign agreements with the Government that provide a framework for undertaking and reporting on actions to abate emissions.

An independent evaluation of the program has demonstrated that the Challenge has been highly effective in achieving greenhouse gas emissions abatement, and in building the capacity of both Government and industry to identify, monitor, manage and report greenhouse gas emissions.