"Sheffield,England"is one of the greenest cities in the UK,and it can be regarded as a model of ecological environment.This study starts with the analysis of the natural and human ecological characteristics of Sheffield,and focuses on analyzing Sheffield's...MORE "Sheffield,England"is one of the greenest cities in the UK,and it can be regarded as a model of ecological environment.This study starts with the analysis of the natural and human ecological characteristics of Sheffield,and focuses on analyzing Sheffield's strategies in the face of new climate change and ecological development.It main...