Society, National Geographic. "Corals, Coral Pictures, Coral Facts - National Geographic." National Geographic. National Geographic, n.d. Web. 01 Dec. 2016. http://animals.nationalgeographic.com/animals/invertebrates/coral/
[1] Frost, Emily. "Corals and Coral Reefs." Ocean Portal | Smithsonian. Smithsonian, 30 Aug. 2016. Web. 01 Dec. 2016. https://ocean.si.edu/corals-and-coral-reefs
"What Are the Three Main Types of Coral Reefs?" US Department of Commerce, National Oceanic and Atmospheric Administration. N.p., n.d. Web. 01 Dec. 2016. http://oceanservice.noaa.gov/facts/threecorals.htmlhttp://oceanservice.noaa.gov/facts/threecorals.html
"What Is Overfishing." Overfishing - A Global Environmental Problem, Threat to Our Oceans and Disaster. N.p., 11 Feb. 2011. Web. 01 Dec. 2016. http://overfishing.org/
"Destructive Fishing." Marine Conservation Institute. N.p., n.d. Web. 01 Dec. 2016. https://marine-conservation.org/what-we-do/program-areas/how-we-fish/destructive-fishing/
[3] Hausheer, Justine E. "Sewage Pollution: A Significant Threat to Coral Reefs." Cool Green Science. N.p., 16 Aug. 2015. Web. 01 Dec. 2016. http://blog.nature.org/science/2015/06/08/sewage-pollution-great-threat-coral-reefs/
[4]"Pollution | Reef Resilience." Reef Resilience. N.p., 14 July 2014. Web. 01 Dec. 2016. http://www.reefresilience.org/coral-reefs/stressors/local-stressors/pollution/
[2] Resource-efficiency. "United Nations Environment Programme." Resource-efficiency Business Sectoral Activities
Tourism Activities Work
/Thematic Areas Ecosystem Management Coral Reefs Tourism's Impact on Reefs. N.p., n.d. Web. 01 Dec. 2016. http://www.unep.org/resourceefficiency/Business/SectoralActivities
/Tourism/Activities/WorkThematicAreas/EcosystemManagement/CoralReefs/TourismsImpactonReefs/tabid/78799/Default.aspx
Tourism Activities Work
/Thematic Areas Ecosystem Management Coral Reefs Tourism's Impact on Reefs. N.p., n.d. Web. 01 Dec. 2016. http://www.unep.org/resourceefficiency/Business/SectoralActivities
/Tourism/Activities/WorkThematicAreas/EcosystemManagement/CoralReefs/TourismsImpactonReefs/tabid/78799/Default.aspx