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	Natural Environment
	2021
Ocean / Sea
Invertebrates
Marine Mammals
Fish
Weather
Birds
Land
Surface Waters / Wetlands
Plants / Kelp
Atmosphere
Arachnids
Land Mammals
Insects
Microbes
Air
Reptiles
	Unusual or Unexpected Event
	2021
Death / Die-off / Decline
Unusual Range / Sighting
Extreme Temperature
Ice / Snow Change
Unusual Size / Abundance
Pollution
Algal Bloom
Deformity / Disease / Injury
Unusual Animal Behavior
Physical or Chemical Change
Extreme Wind
Pathogen
Erosion
Sea/Land Level Change
Seasonal Timing
Permafrost Change
Storm Surge
Earthquake
Glacier Change
Flooding / Draining
Drought
Infestation
Extreme Precipitation
	Impact on Human Environment
	2021
Fisheries
Food Security
Economic Impact
Transportation
Sports / Recreation
Buildings
Aquaculture
Safety
Human Health
Sanitation
Water Security
Energy
Air Quality
Agriculture