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