CSC has made a significant effort towards sustainable development and environmental performance since its first corporate SDS voluntarily developed and published in 1997. At that time, CSC focused primarily on increasing human resources in the regions to help bring forward the environmental agenda and developing environmental management tools to help meet the commitments that were pledged.

The lessons learned from the first SDS, resulted in a more modest approach for the SDS 2000-03. The number of targets considerably decreased from a demanding 42 in the first SDS to just 12 in the second reiteration. Despite the strong efforts made to achieve SDS 2000-03, CSC was unable to conclusively report on whether significant progress was made.

Commitments were further defined in the third edition of the SDS for 2003-06. Priorities were established and nine targets were proposed. CSC was able to better define the scope of its capacity and bring about changes that would help in the achievement of the fourth SDS.

SDS 2007-10 resulted in the highest success for CSC in achieving its commitments. There were 14 targets established and 13 were met or exceeded. The reason for this incredible success rate was due to better balancing of resources and needs.

Based on this great achievement, SDS 2012-15 largely duplicated the notion of finding the equilibrium between resources and commitments. There were 18 targets under five main goals. The final analysis determined 16 targets were met or surpassed and two targets were partially achieved. One of the two targets that were partially achieved was reducing the use of polystyrene and single serving food packing. This target was both challenging to report on and to reach due to the introduction of the food services modernization initiative after the publishing of the SDS, which took precedence over finding innovative ways to reduce polystyrene. The second target that had been identified as partially achieved was the reduction of energy consumption by 3%, intensity based. As this document was being written, it was not yet fully known the results of CSC's energy consumption for 2014-15. Therefore, we could not conclusively report until the end of that year, however, the evidence gathered thus far indicates that this target will be met.

For SDS 2015-18, the essence of the goals has been for the most part persevered from previous SDS's. Contributions are in line with institutional water and energy conservation plans that were developed and implemented over the 2012-15 cycle and the optimization of recycling programs over the same period. Priority has been placed on energy saving initiatives in order to reduce greenhouse gas emissions. Of the 40 targets developed, 32 are focussed on conserving energy by implementing alternative energy projects and by converting to LED lighting. In addition, there are substantial inputs to conserving water by installing water saving devices.