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	Natural Environment
	2020
Weather
Ocean / Sea
Marine Mammals
Land Mammals
Surface Waters / Wetlands
Land
Air
Fish
Invertebrates
Atmosphere
Birds
	Unusual or Unexpected Event
	2020
Ice / Snow Change
Extreme Temperature
Extreme Precipitation
Unusual Range / Sighting
Flooding / Draining
Erosion
Death / Die-off / Decline
Storm Surge
Rain on Snow
Unusual Size / Abundance
Unusual Animal Behavior
Extreme Wind
Pathogen
Seasonal Timing
Permafrost Change
Algal Bloom
Deformity / Disease / Injury
Landslide / Avalanche
Cyclone / Hurricane
Sea/Land Level Change
Eruption
	Impact on Human Environment
	2020
Safety
Buildings
Transportation
Economic Impact
Human Health
Energy
Cultural Impact
Sports / Recreation
Pets
Fisheries
Food Security
Sanitation
Livestock
Forestry
Displacement
Air Quality