| | Domain | Keyword examples |
| | Natural Disaster | Landslide, Earthquake, Flood, Volcano, Forest fire | | Agriculture | Agriculture ecosystem, Food science, Agricultural policy, Pest control | | Forest | Forest cover loss, Forest ecology, Forest biomass waste, Forest canopy | | Urban | Heat island, Urban growth, Surface temperature, Development density | | Air Quality | Air pollution, Yellow dust (Asian Dust), Exhaust gas, Smog | | Water Resource | Water pollution, Water quality, Base flow, Stream flow | | Biodiversity | Species Diversity, Terrestrial species, Oceanic species, Habitat destruction | | Climate | Greenhouse gas, Global warming, Carbon dioxide, Drought, Typhoon | | Health | Carcinogen, Pathogen, Bacteria, Heat stroke, Respiratory disease | | Noise | Noise pollution, Soundproofing, Hearing loss, Sleep disturbance | | Ocean | Mudflat, Coast, Sea level, Red tide, Marine litter | | Soil | Soil pollution, Land degradation, Pesticide, Herbicide | | Waste | Hazardous waste, Wastewater, Bodily wastes, Recycling |
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