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• Topic Timeline (Yearly)

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