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	Natural Environment
	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Weather
Surface Waters / Wetlands
Ocean / Sea
Plants / Kelp
Fish
Land
Insects
Marine Mammals
Land Mammals
Air
Birds
Microbes
Invertebrates
Arachnids
Fungi
Amphibians
Reptiles
Atmosphere
Groundwater
	Unusual or Unexpected Event
	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Death / Die-off / Decline
Unusual Range / Sighting
Ice / Snow Change
Seasonal Timing
Extreme Temperature
Fire
Permafrost Change
Extreme Precipitation
Unusual Size / Abundance
Parasite
Drought
Flooding / Draining
Infestation
Algal Bloom
Erosion
Pollution
Deformity / Disease / Injury
Glacier Change
Unusual Animal Behavior
Thunderstorm
Landslide / Avalanche
Pathogen
Extreme Wind
Cyclone / Hurricane
Eruption
Debris / Trash
Sinkhole / Crater
Sea/Land Level Change
Storm Surge
Earthquake
Rain on Snow
Tsunami
	Impact on Human Environment
	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
Human Health
Buildings
Transportation
Food Security
Sports / Recreation
Sanitation
Economic Impact
Air Quality
Water Security
Pets
Safety
Agriculture
Cultural Impact
Energy
Livestock
Fisheries
Aquaculture
Harvest Change
Displacement
Burial Site
Radiation
Forestry
TOURISM