Biodiversity Net Gain (BNG) represents what?

• A. The environment is in a worse state than before
• B. The environment is in a measurably better state than before
• C. There is no change in biodiversity
• D. It applies only to water quality

Answer: (B)

Biodiversity Net Gain is about ensuring development results in an ecological improvement that can be measured and demonstrated. After a project, the overall state of biodiversity should be better than the baseline before any work began, not the same or worse. This relies on measurable metrics—things like habitat area, species presence and abundance, and habitat condition—to prove the gain and to show that improvements are maintained over time. It’s achieved through actions such as creating new habitats, restoring degraded ones, and enhancing existing biodiversity, with the net effect being a positive, verifiable increase. That’s why the correct statement is that the environment is measurably better than before. It isn’t about a worse state, it isn’t limited to water quality, and it isn’t about no change.