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