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Glaciers play an important role in the balance of water cycles and ecosystems. Although receding glaciers can degrade these systems, they also serve as an indicator of climate change. We can use Earth-observation satellite imagery to monitor and track glaciers from space. This Landsat 8 image shows glaciers surrounding Lake Sofron, Alaska. Blue areas indicate glacial extent; red areas indicate extensive moraine from glacier debris.

50 years of geographic insight: In interview with Jack Dangermond on Esri’s journey and the future of GIS

Rhett Ayers Butler 28 Oct 2024

Saravanan points to a large salt pan, part of Ennore Creek in the city of Chennai. The nearby port’s plan to convert the area into industrial real estate sparked protests among fishing communities in 2016. Image by Mahima Jain.

Protecting India’s fishing villages: Q&A with ‘maptivist’ Saravanan

Mahima Jain 10 Jan 2019

Radar helps Kenya map mangroves and other cloud-covered forests

Gatonye Gathura 15 Nov 2018

Field Notes: Mapping condor conservation strategies

Elizabeth Devitt 5 Oct 2016

Understanding the ghost of the mountain

Julia John 10 Aug 2016

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