In this video, Drs. Anne Gold and Matthew Shupe quickly overview Module 7: Challenges in the Arctic.

In this specific lesson, Dr. John Walsh discusses how climate change is apparent throughout the Arctic (air, land, ice, and ocean) and that these changes are already impacting humans, wildlife, and the environment.

In this specific lesson, Dr. James Overland discusses how sea ice loss can cause major changes in the Arctic climate — and more specifically, in the polar jet stream.

In this specific lesson, Dr. Scott Stephenson focuses on the link between climate change and human activities. You'll learn how melting sea ice contributes to economic transformation of the Arctic.

In this specific lesson, Dr. Katrin Vorkamp describes the Arctic as a recipient of global pollution. You'll learn how man-made pollutants contaminate sea ice and the food chains Arctic communities rely on and how governing bodies tackle the issue.

In this specific lesson, Dr. Jessica Cross discusses ocean acidification and the dangers it poses to areas like marine life and food security. She'll also teach you about steps communities can take to better understand and face the challenge of climate change.

In this specific lesson, Kaare Sikuaq Erickson discusses the Ukpeaġvik Iñupiat Corporation (UIC) and its role in nearly twenty-five thousand research sites in/around Barrow, Alaska. You'll also learn about Arctic indigenous populations that live in areas affected by climate change.

In this specific lesson, Alysa McCall and Dr. Steve Amstrup talk all things polar bear! You'll learn how climate change affects them and hear from Trude Hohle about their role in the MOSAiC expedition.

In this video, Drs. Anne Gold and Matthew Shupe conclude the series "Frozen in the Ice: Exploring the Arctic" with a summary of the course's major lessons.