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	Natural Environment
	2020
Ocean / Sea
Weather
Surface Waters / Wetlands
Marine Mammals
Plants / Kelp
Insects
Land
Land Mammals
Invertebrates
Birds
Air
Fish
Atmosphere
Arachnids
	Unusual or Unexpected Event
	2020
Unusual Range / Sighting
Extreme Temperature
Fire
Unusual Size / Abundance
Seasonal Timing
Permafrost Change
Death / Die-off / Decline
Pathogen
Pollution
Extreme Precipitation
Infestation
Deformity / Disease / Injury
Ice / Snow Change
Extreme Wind
Flooding / Draining
Unusual Animal Behavior
Thunderstorm
Parasite
Debris / Trash
Sinkhole / Crater
Algal Bloom
Rain on Snow
Sea/Land Level Change
Landslide / Avalanche
	Impact on Human Environment
	2020
Safety
Buildings
Sports / Recreation
Human Health
Food Security
Economic Impact
Air Quality
Transportation
Fisheries
Water Security
Energy
Cultural Impact
Harvest Change
Radiation
Aquaculture
Forestry
Agriculture
Pets
Sanitation