This document discusses green buildings and how genetic algorithms can be used for construction optimization. It defines green buildings as structures that are environmentally responsible throughout their lifecycle. It also notes that the construction industry accounts for a significant portion of greenhouse gas emissions. The document then discusses genetic algorithms, noting they are a type of evolutionary algorithm that can be used to find near-optimal solutions to complex problems. It outlines the five phases of a genetic algorithm: initial population, fitness function, selection, crossover, and mutation. Finally, it provides steps for how genetic algorithms could be applied to optimize construction materials, crew, equipment, and schedule to minimize time, cost and environmental impact.