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

	Natural Environment
	2016	2017	2018	2019
Air
Land
Ocean / Sea
Birds
Atmosphere
	Unusual or Unexpected Event
	2016	2017	2018	2019
Eruption
Unusual Size / Abundance
Death / Die-off / Decline
Earthquake
	Impact on Human Environment
	2016	2017	2018	2019
Transportation
Air Quality
Buildings
Safety
Human Health