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

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