ENV201H5 Lecture Notes - Lecture 7: Life-Cycle Assessment
Document Summary
Negatives of c-b:review by heinzerling and ackerman (2002: trivializes the future, should future costs and benefits be discounted, long term projects become less valuable than short term ones. Negatives of c-b:review by heinzerling and ackerman (2002: does not take into account who benefits and who pays, valuation policy based on willingness to pay. Negatives of c-b: what about intrinsic value, value to ecosystem, evolutionary value, etc . Process: compile an inventoryof relevant energy and material inputs and environmental releases, evaluate the potential environmental impactsassociated with identified inputsand releases, interpret the results to help decision-makers make a more informed decision. Compared:energy use, material use, water requirements and environmental emissions (atmospheric, wastewater, solid waste) 2. home laundered: biggest energy use and atmospheric emissions. Problem: how to evaluate these differences: each has a different impact; minimize water use, waste use. Cnw marketing calculated cost-per-miles of combined energy used for designing, building, and driving a car over its expected lifetime.
