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• Summary Stats
• Topic Timeline (Monthly)
• Topic Timeline (Yearly)

	Natural Environment
	2015	2016	2017	2018	2019	2020	2021
Land
Ocean / Sea
Surface Waters / Wetlands
Weather
Plants / Kelp
Air
Microbes
	Unusual or Unexpected Event
	2015	2016	2017	2018	2019	2020	2021
Ice / Snow Change
Permafrost Change
Landslide / Avalanche
Erosion
Glacier Change
Seasonal Timing
Pollution
Eruption
	Impact on Human Environment
	2015	2016	2017	2018	2019	2020	2021
Buildings
Human Health
Transportation
Sanitation
Energy