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• Topic Timeline (Yearly)

	Natural Environment
	2012	2013	2014	2015	2016	2017	2018	2019	2020
Surface Waters / Wetlands
Weather
Land
Fish
Plants / Kelp
Insects
Birds
Land Mammals
Ocean / Sea
Air
Marine Mammals
Arachnids
Invertebrates
	Unusual or Unexpected Event
	2012	2013	2014	2015	2016	2017	2018	2019	2020
Ice / Snow Change
Seasonal Timing
Erosion
Extreme Temperature
Flooding / Draining
Death / Die-off / Decline
Pollution
Extreme Precipitation
Parasite
Unusual Range / Sighting
Deformity / Disease / Injury
Permafrost Change
Rain on Snow
	Impact on Human Environment
	2012	2013	2014	2015	2016	2017	2018	2019	2020
Buildings
Transportation
Human Health
Economic Impact
Food Security
Energy
Sports / Recreation
Sanitation
Safety
Cultural Impact
Aquaculture