This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Dr. Melinda Webster explains sea ice formation. You'll learn about its role in driving ocean circulation, different shapes the ice can take on, and what affects sea ice growth vs. reduction.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Dr. Hauke Flores describes sea ice as an important driver in Arctic food webs. You'll learn about the serious threats climate change poses to biodiversity and key species dependent on ice cover.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Dr. Clara Hoppe sheds light on the small but mighty phytoplankton! You'll learn about MOSAiC's special interest in primary production, carbon export, and groundbreaking data scientists expect to glean from the expedition.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Dr. Gunilla Svensson explains how important Earth system models are to understanding where both global and Arctic climate systems are headed. You'll also learn about the key role MOSAiC's modeling team plays in the expedition.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Dr. Marika Holland will teach you about climate models. She also asks the question: How will climate extremes and environmental changes in the Arctic reverberate around the world?

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

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.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

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.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

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.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Dr. Matthew Shupe broadly defines MOSAiC. From the very first expedition of Fridtjof Nansen to present day, Arctic research remains at the forefront of environmental science and developments in our world's changing climate.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Dr. John Cassano describes the role of the Arctic in the Earth's energy budget and climate system.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Dr. Chris Cox will teach you about Earth's atmosphere. You'll learn about its chemical composition, temperature structure, energy fluxes, and how MOSAiC scientists measure the atmosphere's energy budget.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Dr. Matthew Shupe explains the significance of clouds in the Arctic system and how they play important roles in precipitation, energy transfer, and climate modeling.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Drs. Jennifer Kay and Ariel Morrison introduce positive and negative albedo feedbacks that are important to the Arctic climate system (and polar bears!).

This peer-reviewed educational video explains human-caused climate change including the greenhouse effect.

This peer-reviewed educational video introduces feedbacks that are important in the Arctic climate system.

This peer-reviewed educational video describes sea ice and land ice processes that are unique to polar regions.

CIRES scientist Dr. Alessandra Pacini explains what space weather is, how it affects us here on Earth.

Join Dr Rick Saltus to learn about citizen science with CrowdMag. Everyone is invited to use your smartphone to measure magnetic fields around you and send your data to scientists.

This video is part of a collection - “Frozen in the Ice: Exploring the Arctic." Check out the MOSAiC page for more details.

In this specific lesson, Jonathan Griffith tells the story of Fridtjof Nansen's trailblazing journey through the Arctic in the 1893 Fram Expedition.