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

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