Environmental aspects Economic development 103 Environmental policy 86 Economic aspects 69 Sustainable development 61 Social aspects 41 City planning 24 more ... Government policy 20 History 20 Natural resources 19 Population 19 Environmental protection 17 Urban ecology (Sociology) 17 Climatic changes 16 Energy policy 16 Environmental economics 15 Globalization 15 Human ecology 15 International trade 14 International economic relations 13 Land use 13 Management 13 Economic conditions 12 Agriculture 11 Moral and ethical aspects 11 Political aspects 11 Social responsibility of business 11 Population policy 10 Social conditions 10 Consumption (Economics) 9 less ...