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