A company known for environmentally sustainable projects: at a half-year review the project manager raises serious viability concerns and stakeholders oppose the project over land erosion. What should the project manager do?

The project manager should propose closing the project because it no longer aligns with the company's core values of environmental sustainability. Continuing a project that causes land erosion directly contradicts this value, making the project non-viable for the organization, regardless of other factors. Requesting additional resources or calculating float addresses project management mechanics but ignores the fundamental conflict with organizational values. Calculating earned value is a financial performance metric and, while useful, doesn't resolve the ethical and strategic misalignment that has emerged. The primary issue is the project's impact on the environment and its conflict with company principles.