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