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