Human ecology Nature 390 Effect of human beings on 363 History 358 Écologie humaine 331 Philosophy 290 Environmental policy 234 more ... Environmental conditions 193 human ecology 156 Ecology 147 Environmental protection 144 Environmental ethics 125 Human beings 122 Environmental degradation 113 Environmental aspects 112 Environnement 111 Conservation of natural resources 99 Environmentalism 99 Homme 94 Religious aspects 89 Social aspects 89 Philosophy of nature 86 Effect of environment on 82 Humanökologie 81 Environmental sciences 74 Sustainable development 68 Human geography 67 Philosophie 64 Influence sur la nature 62 Social ecology 61 less ...