Id Id-Span Name
00-67Environment
11-2Environment.Atmosphere
22-2Environment.Atmosphere.Ozone_Depletion
33-8Environment.Climate_Change
44-4Environment.Climate_Change.Biological_Productivity
55-5Environment.Climate_Change.Greenhouse_Gases
66-6Environment.Climate_Change.Human_Impact
77-7Environment.Climate_Change.Sea_Level
88-8Environment.Climate_Change.Sedimentation
99-10Environment.Conservation
1010-10Environment.Conservation.Species
1111-15Environment.Ecological_Change
1212-12Environment.Ecological_Change.Deforestation
1313-13Environment.Ecological_Change.Human_Overpopulation
1414-14Environment.Ecological_Change.Invasive_Species
1515-15Environment.Ecological_Change.Restoration
1616-36Environment.Habitat
1717-17Environment.Habitat.Carbon_Cycle
1818-20Environment.Habitat.Currents
1919-19Environment.Habitat.Currents.Interaction_with_Animals
2020-20Environment.Habitat.Currents.Interaction_with_Vegetation
2121-21Environment.Habitat.Drainage
2222-27Environment.Habitat.Fragile_Ecosystems
2323-23Environment.Habitat.Fragile_Ecosystems.Coral_Reefs
2424-24Environment.Habitat.Fragile_Ecosystems.Polar_Ecosystems
2525-25Environment.Habitat.Fragile_Ecosystems.Seagrass_Beds
2626-26Environment.Habitat.Fragile_Ecosystems.Seep_and_Vent
2727-27Environment.Habitat.Fragile_Ecosystems.Wetlands
2828-28Environment.Habitat.Human_Impacts
2929-29Environment.Habitat.Mercury_Cycle
3030-30Environment.Habitat.Morphology
3131-31Environment.Habitat.Nutrient_Cycle
3232-34Environment.Habitat.Sediments
3333-33Environment.Habitat.Sediments.Properties
3434-34Environment.Habitat.Sediments.Stability
3535-35Environment.Habitat.Water_Cycle
3636-36Environment.Habitat.Weather
3737-37Environment.Nuclear_Testing
3838-50Environment.Pollution
3939-39Environment.Pollution.Acid_Rain
4040-40Environment.Pollution.Bacterial_Digestion
4141-41Environment.Pollution.Concentration_in_Food_Chain
4242-42Environment.Pollution.Heavy_Metals
4343-43Environment.Pollution.Inorganic_Chemicals
4444-44Environment.Pollution.Interaction_with_Sediments
4545-45Environment.Pollution.Mine_Drainage
4646-46Environment.Pollution.Nutrients
4747-47Environment.Pollution.Organic_Chemicals
4848-48Environment.Pollution.Public_Health
4949-49Environment.Pollution.Radioactive_Waste
5050-50Environment.Pollution.Runoff
5151-62Environment.Sediment
5252-54Environment.Sediment.Deposition
5353-53Environment.Sediment.Deposition.Natural_Processes
5454-54Environment.Sediment.Deposition.Waste_Disposal
5555-57Environment.Sediment.Erosion
5656-56Environment.Sediment.Erosion.Dredging
5757-57Environment.Sediment.Erosion.Natural_Processes
5858-58Environment.Sediment.Interaction_with_Animals
5959-59Environment.Sediment.Interaction_with_Pollutants
6060-60Environment.Sediment.Interaction_with_Vegetation
6161-61Environment.Sediment.Subsidence
6262-62Environment.Sediment.Transport
6363-67Environment.Waste_Disposal
6464-64Environment.Waste_Disposal.Dredge_Spoils
6565-65Environment.Waste_Disposal.Injection_Wells
6666-66Environment.Waste_Disposal.Radioactive_Waste
6767-67Environment.Waste_Disposal.Sewage_Outfalls
6868-107Hazards_and_Disasters
6969-72Hazards_and_Disasters.Biological_Impacts
7070-70Hazards_and_Disasters.Biological_Impacts.Extinction
7171-71Hazards_and_Disasters.Biological_Impacts.Fish_Kills
7272-72Hazards_and_Disasters.Biological_Impacts.Red_Tide
7373-73Hazards_and_Disasters.Drought
7474-76Hazards_and_Disasters.Earthquake
7575-75Hazards_and_Disasters.Earthquake.Effects
7676-76Hazards_and_Disasters.Earthquake.Prediction
7777-86Hazards_and_Disasters.Erosion
7878-78Hazards_and_Disasters.Erosion.Beach
7979-79Hazards_and_Disasters.Erosion.Coast
8080-82Hazards_and_Disasters.Erosion.Long_Term
8181-81Hazards_and_Disasters.Erosion.Long_Term.Human_Activities
8282-82Hazards_and_Disasters.Erosion.Long_Term.Natural_Processes
8383-83Hazards_and_Disasters.Erosion.Restoration
8484-86Hazards_and_Disasters.Erosion.Storm_Impact
8585-85Hazards_and_Disasters.Erosion.Storm_Impact.Catastrophic
8686-86Hazards_and_Disasters.Erosion.Storm_Impact.Chronic
8787-87Hazards_and_Disasters.Fire
8888-88Hazards_and_Disasters.Flood
8989-91Hazards_and_Disasters.Landslide
9090-90Hazards_and_Disasters.Landslide.Coast
9191-91Hazards_and_Disasters.Landslide.Submarine
9292-92Hazards_and_Disasters.Magnetic_Storms
9393-93Hazards_and_Disasters.Meteorite
9494-96Hazards_and_Disasters.Mitigation
9595-95Hazards_and_Disasters.Mitigation.Policies
9696-96Hazards_and_Disasters.Mitigation.Structural
9797-97Hazards_and_Disasters.Preparation
9898-98Hazards_and_Disasters.Reconstruction
9999-99Hazards_and_Disasters.Recovery
100100-100Hazards_and_Disasters.Response
101101-103Hazards_and_Disasters.Spill
102102-102Hazards_and_Disasters.Spill.Chemical
103103-103Hazards_and_Disasters.Spill.Petroleum
104104-105Hazards_and_Disasters.Storm
105105-105Hazards_and_Disasters.Storm.Hurricanes_and_Typhoons
106106-106Hazards_and_Disasters.Tsunami
107107-107Hazards_and_Disasters.Volcano
108108-165Resources
109109-109Resources.Biology
110110-111Resources.Culture
111111-111Resources.Culture.Historical_Sites
112112-131Resources.Energy
113113-118Resources.Energy.Gas_Hydrate
114114-117Resources.Energy.Gas_Hydrate.Deposits
115115-115Resources.Energy.Gas_Hydrate.Deposits.Formation
116116-116Resources.Energy.Gas_Hydrate.Deposits.Geologic_Setting
117117-117Resources.Energy.Gas_Hydrate.Deposits.Location
118118-118Resources.Energy.Gas_Hydrate.Effects_of_Extraction
119119-124Resources.Energy.Natural_Gas
120120-123Resources.Energy.Natural_Gas.Deposits
121121-121Resources.Energy.Natural_Gas.Deposits.Formation
122122-122Resources.Energy.Natural_Gas.Deposits.Geologic_Setting
123123-123Resources.Energy.Natural_Gas.Deposits.Location
124124-124Resources.Energy.Natural_Gas.Effects_of_Extraction
125125-130Resources.Energy.Petroleum
126126-129Resources.Energy.Petroleum.Deposits
127127-127Resources.Energy.Petroleum.Deposits.Formation
128128-128Resources.Energy.Petroleum.Deposits.Geologic_Setting
129129-129Resources.Energy.Petroleum.Deposits.Location
130130-130Resources.Energy.Petroleum.Effects_of_Extraction
131131-131Resources.Energy.Renewable
132132-142Resources.Food
133133-135Resources.Food.Fishing
134134-134Resources.Food.Fishing.Commercial_Fishing
135135-135Resources.Food.Fishing.Subsistence_Fishing
136136-138Resources.Food.Hunting
137137-137Resources.Food.Hunting.Commercial_Hunting
138138-138Resources.Food.Hunting.Subsistence_Hunting
139139-139Resources.Food.Impacts_of_Agriculture
140140-142Resources.Food.Whaling
141141-141Resources.Food.Whaling.Commercial_Whaling
142142-142Resources.Food.Whaling.Subsistence_Whaling
143143-144Resources.Management
144144-144Resources.Management.Law
145145-150Resources.Mineral
146146-146Resources.Mineral.Ferromanganese_Minerals
147147-147Resources.Mineral.Heavy_Minerals
148148-148Resources.Mineral.Phosphorites
149149-149Resources.Mineral.Polymetallic_Deposits
150150-150Resources.Mineral.Sulfides
151151-151Resources.Recreation
152152-152Resources.Sediment
153153-154Resources.Tourism
154154-154Resources.Tourism.Environmental_Effects_of_Tourism
155155-156Resources.Transportation
156156-156Resources.Transportation.Shipping_Channels
157157-165Resources.Water
158158-161Resources.Water.Aquifers
159159-159Resources.Water.Aquifers.Geology
160160-160Resources.Water.Aquifers.Hydrology
161161-161Resources.Water.Aquifers.Location
162162-162Resources.Water.Control
163163-164Resources.Water.Effects_of_Extraction
164164-164Resources.Water.Effects_of_Extraction.Saltwater_Intrusion
165165-165Resources.Water.Quality
166166-171Science_and_Scientists
167167-168Science_and_Scientists.Methodology
168168-168Science_and_Scientists.Methodology.Environmental_Impacts
169169-169Science_and_Scientists.People_of_Color_in_Science
170170-170Science_and_Scientists.Policy
171171-171Science_and_Scientists.Women_in_Science