Creating green building We are facing a global environment crisis.we are using our earth`s resource faster than nature can replace them.coal,petroleum,natural gas...these resource take millions of years to form naturally. But green buildings is based on a model for sustainable design that aims to reduce energy and water use.also,the green buildings are often located near public transportation such as buses and subways,so that people can drive their cars less. Some of these green buildings even have green roofs which are designed so that they are covered with soil and grass!that could be good for the environment,because then can reduce heat loss and energy consumption in winter.it can even serve as a home for animals such as birds and insects. Imagine living in a housing community which is very friendly to the environment.you can wake up in the morning and say,my environmental consumption today is nearly zero. Lastly ,it`s the idea that human civilization is a part of the natural world and that nature must be preserved if the human community is to survive.