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• Topic Timeline (Yearly)

	Natural Environment
	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Weather
Land
Surface Waters / Wetlands
Ocean / Sea
Plants / Kelp
Microbes
Marine Mammals
Fish
Air
	Unusual or Unexpected Event
	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Ice / Snow Change
Seasonal Timing
Extreme Precipitation
Glacier Change
Extreme Wind
Landslide / Avalanche
Rain on Snow
Extreme Temperature
Permafrost Change
Unusual Range / Sighting
Drought
Fire
Erosion
Pollution
Flooding / Draining
	Impact on Human Environment
	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Buildings
Transportation
Human Health
Sports / Recreation
Safety
Energy
Economic Impact
Fisheries
Water Security
Agriculture