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

	Natural Environment
	2010	2011	2012	2013	2014	2015	2016	2017	2018
Invertebrates
Ocean / Sea
	Impact on Human Environment
	2010	2011	2012	2013	2014	2015	2016	2017	2018
Human Health
Sanitation