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

	Natural Environment
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
Ocean / Sea
Marine Mammals
Weather
Land
Invertebrates
Birds
Fish
Land Mammals
Surface Waters / Wetlands
	Unusual or Unexpected Event
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
Ice / Snow Change
Permafrost Change
Extreme Temperature
Landslide / Avalanche
Rain on Snow
Death / Die-off / Decline
Unusual Animal Behavior
	Impact on Human Environment
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
Transportation
Human Health
Buildings
Food Security