To reduce reliance on natural gas power and lower greenhouse gas emissions, the best strategy is to purchase green energy credits (Option A).

Why Option A is Correct?

Green energy credits (RECs - Renewable Energy Certificates) allow organizations to offset their energy consumption by supporting renewable energy production.

This approach directly contributes to reducing carbon footprints while ensuring the facility remains operational.

IFMA’s Environmental Stewardship & Sustainability Core Competency emphasizes the importance of renewable energy adoption to achieve sustainability goals.

Why Other Options Are Incorrect?

Option B (Lights-out policy at night): While reducing energy use helps, it does not significantly reduce dependence on fossil-fuel power sources.

Option C (Buy electricity from a coal power plant): Coal power plants produce higher emissions than natural gas, making this option counterproductive.