Ngā pukapuka me ngā arapāho

Conservation of natural resources Management 20 Environmental protection 18 Natural resources 18 Environmental aspects 16 Sustainable development 12 Environmental policy 11 Biodiversity conservation 10 Law and legislation 10 Economic development 9 Nature conservation 8 Ecology 7 Effect of human beings on 7 Nature 7 Biodiversity 6 Environmental conditions 6 Environmental law 6 Environmental management 5 Human ecology 5 Māori (New Zealand people) 5 Citizen participation 4 Climatic changes 4 Consumption (Economics) 4 Land tenure 4 Wildlife conservation 4 Cultural property 3 Economic aspects 3 Ethnobiology 3 Government policy 3 History 3