The document discusses the complexities surrounding GRESB, a sustainability assessment framework in real estate, focusing on whether companies should prioritize improving their GRESB scores or genuinely enhance their environmental practices. It highlights Alstria's approaches to sustainability, including switching to renewable energy and minimizing new construction, while questioning GRESB's methods and potential monopolistic behavior. Concerns are raised about GRESB's reliance on company-reported data, the lack of transparency, and whether participating in GRESB truly benefits sustainability efforts.