Global Impact Investing Network, May 2019
Poorly harmonized definitions of common terms and impact investing themes have prevented impact investors from communicating and comparing impact performance.
The IRIS+ Thematic Taxonomy document describes the generally accepted definitions of Impact Categories and Impact Themes, providing a shared language for describing, assessing, communicating, and ultimately comparing impact performance.
This document belongs to the Fundamentals guidance series of IRIS+ which offer an overview of the core concepts and rules underpinning IRIS+ based impact measurement and management.