In the EIA framework, how are residual environmental impacts addressed after mitigation measures are implemented?

• A. They are ignored.
• B. They are monitored and managed through adaptive management and ongoing monitoring.
• C. They are assumed to vanish.
• D. They are exclusively handled by external agencies.

Answer: (B)

In the EIA framework, residual environmental impacts are addressed through ongoing monitoring and adaptive management. After mitigation measures are implemented, some effects may still persist or evolve; monitoring provides data on the actual performance of mitigations and the status of residual impacts. If monitoring shows that impacts are still above acceptable levels or change in unexpected ways, adaptive management steps are taken to adjust or enhance mitigation, implement additional actions, or modify operating practices. This creates a feedback loop that continues throughout the project’s life, ensuring that residual effects are kept in check and the project can respond to new information. The other options—ignoring residuals, assuming they vanish, or leaving them exclusively to external agencies—do not reflect the intentional, ongoing process of verification and adjustment that adaptive management and monitoring provide.