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• Topic Timeline (Yearly)

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