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	Natural Environment
	2021
Weather
Land
Land Mammals
Surface Waters / Wetlands
Insects
Air
Plants / Kelp
Fish
Arachnids
Groundwater
Atmosphere
Birds
Invertebrates
Ocean / Sea
Amphibians
Reptiles
Marine Mammals
	Unusual or Unexpected Event
	2021
Extreme Temperature
Fire
Unusual Animal Behavior
Ice / Snow Change
Pathogen
Extreme Precipitation
Flooding / Draining
Death / Die-off / Decline
Drought
Unusual Range / Sighting
Unusual Size / Abundance
Landslide / Avalanche
Erosion
Extreme Wind
Deformity / Disease / Injury
Infestation
Eruption
Cyclone / Hurricane
Seasonal Timing
Permafrost Change
Algal Bloom
Pollution
Earthquake
	Impact on Human Environment
	2021
Human Health
Safety
Buildings
Sports / Recreation
Air Quality
Transportation
Economic Impact
Food Security
Energy
Sanitation
Water Security
Pets
Displacement
Agriculture
Livestock
Cultural Impact
Harvest Change
Fisheries
Forestry
Aquaculture