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