green buildings include: -energy conservation -water conservation -material selection -use of renewable materials -occupant health and indoor environment quality -site ecology -recycling the green building can be residential, commercial, retail and industrial buildings. for example, the green building uses water-mining plant to recycle water on toilet flushing, watering the garden, and washing cars. the building also uses phase-change materials for cooling, automatic night-purge windows, wavy concrete ceilings, which saves a lot of money and become more sustainable. the idea of green and healthy cities is becoming more important nowadays. the better city should be planed for health and well-being by planners, and they will mainly focus on service facilities, educations. the good city will also need to be safe in community, and make community more walkable, and has an urban design with exquisite streetscape. however the planner keeps developing new ideas of how cities should be changed, therefore the city will become more livable and sustainable in the future. reference: susan s. fainstein, can we make the cities we want? the urban movement richard reed and sara j. wilkinson (oct, XX) green building-issues for the valuation process, uiversity of melbourne 本文来源：https://www.wddqw.com/doc/3ce4ce83f342336c1eb91a37f111f18582d00ced.html