Pynciau a Argymhellir
- Effect of human beings on 78 canlyniadau
- Nature 78 canlyniadau
- Human ecology 34 canlyniadau
- Environmental protection 13 canlyniadau
- Environmental policy 12 canlyniadau
- Climatic changes 9 canlyniadau
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- History 7 canlyniadau
- Environmental aspects 6 canlyniadau
- Environmental degradation 6 canlyniadau
- Human beings 6 canlyniadau
- Sustainable development 6 canlyniadau
- Effect of environment on 5 canlyniadau
- Global environmental change 5 canlyniadau
- Population 5 canlyniadau
- Ecology 4 canlyniadau
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- Indigenous peoples 4 canlyniadau
- Environmental responsibility 3 canlyniadau
- Natural areas 3 canlyniadau
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- Social aspects 3 canlyniadau
- Sustainable living 3 canlyniadau
- Case studies 2 canlyniadau
- Documentary films 2 canlyniadau
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- Environmentalism 2 canlyniadau
- Evolution (Biology) 2 canlyniadau
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- Human-animal relationships 2 canlyniadau
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- Land tenure 2 canlyniadau
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- Natural resources 2 canlyniadau
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- Activity programs 1 canlyniadau
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- Anarchism 1 canlyniadau
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- Anthropology 1 canlyniadau
- Art and literature 1 canlyniadau
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- Biodiversity 1 canlyniadau
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- Communication in the environmental sciences 1 canlyniadau
- Consumer behavior 1 canlyniadau rhagor...