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• Topic Timeline (Monthly)
• Topic Timeline (Yearly)

	Natural Environment
	2010	2011	2012	2013	2014	2015
Surface Waters / Wetlands
Fish
Land
Weather
Ocean / Sea
Plants / Kelp
Land Mammals
Microbes
Birds
Marine Mammals
Invertebrates
	Unusual or Unexpected Event
	2010	2011	2012	2013	2014	2015
Ice / Snow Change
Seasonal Timing
Erosion
Parasite
Flooding / Draining
Pollution
Permafrost Change
Physical or Chemical Change
Algal Bloom
	Impact on Human Environment
	2010	2011	2012	2013	2014	2015
Buildings
Human Health
Transportation
Sanitation
Fisheries
Cultural Impact
Economic Impact
Water Security