Extreme environments. Lakes
Description
Lakes are bodies of water not connected to the ocean. Most contain fresh water, which makes them a focus for life, as all land-based animals require water to survive. Just three percent of the world's water is fresh, with two thirds being locked away in polar or glacial ice. Russia's Lake by Chao and the Great Lake System of North America make up as much as half of what's left over. We look at the way Russians make use of their lake during the winter when it freezes over, and the effect on Global Warming when the Lake starts to thaw, releasing methane and carbon dioxide from the thawing process.
Runtime
24 min
Series
Subjects
Geography
Genre
Date of Publication
2010
Database
Alexander Street
Direct Link
Similar Films
Waterlife
Extreme environments. Earth
What is killing Lake Winnipeg & how to save it
Extreme environments. Earthquake
The Salton Sea. A desert saga
Extreme environments. Glacier
Extreme environments. Sun
Extreme environments. Space
Extreme environments. Climate change
Extreme environments. Tropics
Extreme environments. Mountain
Extreme environments. Flood
Extreme environments. Fire
Extreme environments. Volcanoes