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

	Natural Environment
	2013	2014	2015	2016	2017	2018	2019
Surface Waters / Wetlands
Land
Ocean / Sea
Land Mammals
Weather
	Unusual or Unexpected Event
	2013	2014	2015	2016	2017	2018	2019
Drought
Ice / Snow Change
	Impact on Human Environment
	2013	2014	2015	2016	2017	2018	2019
Sanitation
Buildings
Water Security
Transportation
Energy