Assess learners' ability to apply life cycle assessment (LCA) to compare municipal solid waste management options—waste-to-energy (WtE) versus landfill with methane capture—focusing on greenhouse gas emissions, water use, and air-pollutant impacts; tasks include defining functional unit and system boundaries, selecting emissions and water-use data, modeling methane capture efficiencies and energy recovery credits, performing sensitivity/uncertainty analyses, and interpreting trade-offs for decision-making.