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	Natural Environment
	2021
Ocean / Sea
Weather
Land Mammals
Marine Mammals
Birds
Land
Surface Waters / Wetlands
Fish
Groundwater
Air
Invertebrates
	Unusual or Unexpected Event
	2021
Ice / Snow Change
Extreme Temperature
Extreme Precipitation
Death / Die-off / Decline
Unusual Range / Sighting
Unusual Animal Behavior
Landslide / Avalanche
Deformity / Disease / Injury
Pathogen
Extreme Wind
Algal Bloom
Drought
Seasonal Timing
Flooding / Draining
Pollution
Fire
Rain on Snow
Earthquake
Unusual Size / Abundance
Infestation
Permafrost Change
Sinkhole / Crater
Erosion
Parasite
	Impact on Human Environment
	2021
Safety
Transportation
Buildings
Sports / Recreation
Human Health
Pets
Energy
Sanitation
Water Security
Economic Impact
Food Security
Livestock
Displacement
Agriculture
Cultural Impact
Fisheries
Air Quality
Forestry
Aquaculture
Harvest Change