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