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• Summary Stats
• Topic Timeline (Monthly)
• Topic Timeline (Yearly)

	Natural Environment
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
Weather
Surface Waters / Wetlands
Ocean / Sea
Land
Plants / Kelp
Air
Land Mammals
Marine Mammals
Fish
Invertebrates
Groundwater
Microbes
Atmosphere
Birds
	Unusual or Unexpected Event
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
Ice / Snow Change
Seasonal Timing
Extreme Temperature
Extreme Precipitation
Rain on Snow
Glacier Change
Unusual Range / Sighting
Permafrost Change
Flooding / Draining
Erosion
Landslide / Avalanche
Storm Surge
Death / Die-off / Decline
Pathogen
Pollution
Drought
Fire
	Impact on Human Environment
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
Transportation
Food Security
Buildings
Safety
Human Health
Cultural Impact
Sports / Recreation
Energy
Economic Impact
Livestock
Air Quality
Agriculture
Water Security
Sanitation
Aquaculture
Harvest Change