Renewable resources Energy resources 6 Food resources 5 Forest resources 5 Land resources 5 Mineral resources 4 Nuclear pollution 4 Radiation pollution 4 Wasteland reclamation 4 Water resources 4 Disaster management 3 Ecosystems 3 Human population 3 Marine pollution 3 Natural disasters 3 Non renewable resources 3 Climatic change 2 Environmental studies 2 Natural resources 2 Noise pollution 2 Soil pollution 2 consumerism 2 disaster management 2 Acid rain 1 Consumerism 1 Cyclone 1 Disaster, Natural 1 Earthquakes 1 Environmental justice 1 Environmental problems 1