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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
Ocean / Sea
Surface Waters / Wetlands
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