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

	Natural Environment
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Land
Weather
Surface Waters / Wetlands
Ocean / Sea
Plants / Kelp
Air
Insects
Fish
Birds
Land Mammals
Atmosphere
	Unusual or Unexpected Event
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Ice / Snow Change
Extreme Precipitation
Fire
Flooding / Draining
Erosion
Extreme Wind
Seasonal Timing
Landslide / Avalanche
Permafrost Change
Extreme Temperature
Storm Surge
Unusual Size / Abundance
Earthquake
Cyclone / Hurricane
Death / Die-off / Decline
Drought
Rain on Snow
Eruption
Pollution
Tsunami
	Impact on Human Environment
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Buildings
Transportation
Human Health
Sanitation
Energy
Cultural Impact
Safety
Economic Impact
Sports / Recreation
Agriculture
Displacement
Air Quality
Livestock
Food Security
Pets
Forestry
Radiation