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• Topic Timeline (Yearly)

	Natural Environment
	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Weather
Surface Waters / Wetlands
Land
Ocean / Sea
Air
Fish
	Unusual or Unexpected Event
	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Extreme Wind
Extreme Precipitation
Ice / Snow Change
Flooding / Draining
Extreme Temperature
Erosion
Earthquake
Cyclone / Hurricane
Pollution
Thunderstorm
Drought
Landslide / Avalanche
Permafrost Change
	Impact on Human Environment
	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Energy
Transportation
Buildings
Human Health
Safety
Sanitation
Economic Impact
Sports / Recreation
Communication
Fisheries
Agriculture
Displacement
Pets
Water Security