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

	Natural Environment
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Surface Waters / Wetlands
Ocean / Sea
Land
Groundwater
Weather
Invertebrates
	Unusual or Unexpected Event
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Physical or Chemical Change
Death / Die-off / Decline
Extreme Temperature
Permafrost Change
Sinkhole / Crater
Seasonal Timing
Ice / Snow Change
Erosion
Extreme Wind
Sea/Land Level Change
Storm Surge
Glacier Change
	Impact on Human Environment
	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Water Security
Economic Impact
Buildings
Agriculture
Harvest Change
Livestock