Approximately how many sustainability reports are housed in the GRI database?

The correct answer is that the GRI database houses approximately 40,000 sustainability reports. This number reflects the extensive adoption of the Global Reporting Initiative's framework by companies around the world. The GRI database serves as a comprehensive repository that captures the commitment of various organizations to transparency and accountability in sustainability practices. By providing access to such a large number of reports, the GRI aims to facilitate knowledge sharing and enable stakeholders to compare sustainability practices across different industries and regions. The database is an essential resource for researchers, practitioners, and companies seeking to benchmark their performance or find inspiration for their own sustainability reporting efforts.

In contrast, the other options do not accurately represent the current scale of the GRI database, underrepresenting the amount of sustainability information available for stakeholders.