Exploring with GIS: Following Plastic from Land to Sea

Exploring with GIS: Following Plastic from Land to Sea

Plastic pollution is a problem, especially in our oceans. National Geographic Explorer Heather Koldewey, along with a team of experts, set off on an expedition to find answers. Through technology, data collection, and mapping on India’s Ganges River, Heather and her team use innovative bottle tags as one method to determine and chart where much of the plastic pollution originates from.


5 - 8


Biology, Ecology, Conservation, Geography, Geographic Information Systems (GIS), Physical Geography

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Web Producer
André Gabrielli, National Geographic Society
Last Updated

October 19, 2023

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