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• Topic Timeline (Yearly)

	Natural Environment
	2013	2014	2015	2016	2017	2018	2019	2020	2021
Land
Weather
Surface Waters / Wetlands
Ocean / Sea
Fish
Plants / Kelp
Groundwater
Birds
Invertebrates
Land Mammals
Arachnids
Amphibians
Fungi
Insects
Microbes
Marine Mammals
	Unusual or Unexpected Event
	2013	2014	2015	2016	2017	2018	2019	2020	2021
Landslide / Avalanche
Extreme Precipitation
Flooding / Draining
Ice / Snow Change
Erosion
Extreme Temperature
Rain on Snow
Extreme Wind
Glacier Change
Earthquake
Permafrost Change
Cyclone / Hurricane
Tsunami
Seasonal Timing
Parasite
Death / Die-off / Decline
Storm Surge
Thunderstorm
	Impact on Human Environment
	2013	2014	2015	2016	2017	2018	2019	2020	2021
Transportation
Buildings
Safety
Human Health
Displacement
Sports / Recreation
Economic Impact
Agriculture
Energy
Cultural Impact
Food Security
Sanitation
Water Security
Fisheries
Pets
Forestry
Relocation
Water Management
Aquaculture