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• Summary Stats
• Topic Timeline (Monthly)
• Topic Timeline (Yearly)

	Natural Environment
	2017	2018	2019	2020
Land
Ocean / Sea
Weather
Microbes
Surface Waters / Wetlands
Land Mammals
Air
Plants / Kelp
Fish
Invertebrates
	Unusual or Unexpected Event
	2017	2018	2019	2020
Seasonal Timing
Ice / Snow Change
Permafrost Change
Extreme Precipitation
Erosion
Flooding / Draining
Storm Surge
	Impact on Human Environment
	2017	2018	2019	2020
Buildings
Human Health
Sanitation
Agriculture
Economic Impact
Livestock
Energy
Food Security
Safety
Transportation
Water Security