What is the primary difference between qualitative and quantitative sustainability metrics?

The primary difference between qualitative and quantitative sustainability metrics lies in how they evaluate data types. Qualitative metrics assess non-numerical data, which allows for the exploration of experiences, perceptions, and other contextual factors that may not be captured in numbers. This approach often involves methods such as interviews, open-ended surveys, and observations, enabling a deeper understanding of issues related to sustainability that are complex and multi-faceted.

On the other hand, quantitative metrics focus on numerical data and typically involve measurable items such as carbon emissions, water usage, or energy consumption. These metrics provide a concrete basis for tracking progress and making comparisons over time or between different entities.

The distinction is crucial because it highlights the complementary nature of both types of metrics in providing a holistic view of sustainability. While qualitative metrics offer insights into stakeholder engagement and values, quantitative metrics supply the hard data needed for objective analysis and decision-making in sustainability accounting.