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• Topic Timeline (Yearly)

	Natural Environment
	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Weather
Plants / Kelp
Surface Waters / Wetlands
Ocean / Sea
Land
Air
Birds
Land Mammals
Marine Mammals
Insects
Fish
Invertebrates
Arachnids
Microbes
Reptiles
Amphibians
Groundwater
Fungi
	Unusual or Unexpected Event
	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Seasonal Timing
Ice / Snow Change
Extreme Temperature
Extreme Precipitation
Unusual Range / Sighting
Unusual Animal Behavior
Death / Die-off / Decline
Permafrost Change
Rain on Snow
Unusual Size / Abundance
Pollution
Flooding / Draining
Fire
Erosion
Storm Surge
Drought
Algal Bloom
Deformity / Disease / Injury
Thunderstorm
Extreme Wind
Cyclone / Hurricane
Infestation
Glacier Change
Earthquake
Landslide / Avalanche
	Impact on Human Environment
	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Human Health
Transportation
Food Security
Sports / Recreation
Economic Impact
Cultural Impact
Buildings
Agriculture
Livestock
Energy
Water Security
Pets
Sanitation
Harvest Change
Safety
Aquaculture
Air Quality