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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
Land
Ocean / Sea
Air
Birds
Land Mammals
Insects
Marine Mammals
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
Rain on Snow
Death / Die-off / Decline
Permafrost Change
Fire
Erosion
Flooding / Draining
Pollution
Thunderstorm
Unusual Size / Abundance
Drought
Extreme Wind
Parasite
Deformity / Disease / Injury
Storm Surge
Landslide / Avalanche
Algal Bloom
Infestation
Cyclone / Hurricane
Glacier Change
Earthquake
	Impact on Human Environment
	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Human Health
Transportation
Food Security
Buildings
Sports / Recreation
Economic Impact
Cultural Impact
Agriculture
Energy
Livestock
Pets
Water Security
Sanitation
Harvest Change
Safety
Air Quality
Aquaculture