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Melting Ice, Rising Seas: Ice Melt & Sea Level Rise

Grade level: 9-12
Themes: climate, ocean circulation, water cycle
Video: melting_ice_03.flv

Two thirds of the fresh water on Earth is frozen in the world's ice fields. If that ice melts, seas will rise. If all of that ice were to melt, sea level would rise worldwide by 70 meters. No one expects all of that ice to melt anytime soon, but even the meter of sea level rise that many scientists predict for the next century could have dramatic consequences.

Lora Koenig: "Even though the polar regions seem very far from a lot of people's day to day life, they are very important. Because they are regions that cool our earth. And as they change, they're going to cause larger changes throughout the rest of the globe." (source)
 
Student Outcomes 
After viewing this video, students should be able to:

Explain how climate variations can induce changes in the global ocean circulation. (C: 9-12)

Explain the relationship between fresh water and ocean dynamics. (W: 9-12)

Determine if global precipitation, evaporation, and the cycling of water are changing. (W: 9-12)

Key:  C = climate / O = ocean circulation / T = 21st century technology / W = water cycle