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	Natural Environment
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
Weather
Land
Surface Waters / Wetlands
Fish
Plants / Kelp
Ocean / Sea
Land Mammals
Marine Mammals
Birds
Insects
Groundwater
Air
Invertebrates
Microbes
Arachnids
Fungi
Atmosphere
Amphibians
Reptiles
	Unusual or Unexpected Event
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
Extreme Temperature
Ice / Snow Change
Death / Die-off / Decline
Seasonal Timing
Erosion
Permafrost Change
Unusual Range / Sighting
Unusual Size / Abundance
Drought
Deformity / Disease / Injury
Extreme Precipitation
Rain on Snow
Pollution
Algal Bloom
Parasite
Flooding / Draining
Unusual Animal Behavior
Landslide / Avalanche
Fire
Thunderstorm
Extreme Wind
Infestation
Storm Surge
Cyclone / Hurricane
Pathogen
Earthquake
Tsunami
	Impact on Human Environment
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
Cultural Impact
Food Security
Sports / Recreation
Economic Impact
Human Health
Buildings
Transportation
Energy
Livestock
Pets
Harvest Change
Safety
Water Security
Agriculture
Fisheries
Burial Site
Sanitation
Forestry
Displacement
Air Quality
Aquaculture
Radiation