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