Conservation of natural resources 64 Environmental protection 9 Human ecology 9 Natural resources 9 Sustainable development 9 Conservation of natural resources in literature 8 Ecocriticism 8 English literature 8 American literature 7 Criticism 7 Ecology in literature 7 Environmental law, International 7 Environmental policy 7 Environmental protection in literature 7 Forests in literature 7 Landscapes in literature 7 Nature in literature 7 Outdoor life in literature 7 Philosophy of nature in literature 7 Wilderness areas in literature 7 Christian stewardship 5 Human ecology-Religious aspects 5 Climatic changes 4 Conservation of natural resources-Moral and ethical aspects 4 Environmental law 4 Indigenous peoples 4 Land use 4 Natural resources-Management 4 Nature conservation 4 Pollution 4