The new taxonomy will allow companies reporting under the GRI's Sustainability Reporting Guidelines to tag their sustainability reporting information, in much the same way that many companies the IFRS Taxonomy to tag their financial information. Versions of the taxonomy are available for both the 'G3' and 'G3.1' versions of the GRI guidelines. XBRL tagged information is designed to be easily found and accessed in electronic format.
The GRI Taxonomy was developed in collaboration with Deloitte Netherlands. Click for GRI press release (link to GRI website).