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