Environmental aspects Environmental conditions Ecology 95 History 72 Social aspects 37 Social conditions 32 Environmental policy 30 več ... Environmentalism 22 Economic conditions 21 Effect of human beings on 21 Nature 21 City planning 19 Political aspects 18 Human ecology 17 Environmental protection 16 Urbanization 16 Economic aspects 14 Politics and government 14 Urban ecology (Sociology) 14 Economic development 12 Pollution 12 Environmental degradation 11 Government policy 11 Sustainable development 11 Climatic changes 10 Economic history 10 Social conflict 10 Health aspects 9 Land use 8 Petroleum industry and trade 8 manj ...