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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
Invertebrates
Insects
	Unusual or Unexpected Event
	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019
Ice / Snow Change
Seasonal Timing
Glacier Change
Permafrost Change
Extreme Temperature
Rain on Snow
Extreme Precipitation
Flooding / Draining
Erosion
Extreme Wind
Drought
Storm Surge
Unusual Range / Sighting
Pollution
Landslide / Avalanche
Death / Die-off / Decline
Unusual Size / Abundance
	Impact on Human Environment
	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019
Transportation
Buildings
Human Health
Food Security
Economic Impact
Sports / Recreation
Energy
Sanitation
Agriculture
Livestock
Cultural Impact
Water Security
Safety
Pets
Air Quality
Fisheries