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• Topic Timeline (Yearly)

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