Part 5: Albedo – Climate Emergency: Feedback Loops
10:35 | The reflectivity of snow and ice at the poles, known as the albedo effect, is one of Earth’s most important cooling mechanisms.
Part 4: Atmosphere – Climate Emergency: Feedback Loops
8:44 | Global warming is altering Earth’s weather patterns dramatically. A warmer atmosphere absorbs more water vapor, which in turn traps more heat and warms the planet further in an accelerating feedback loop.
Part 3: Permafrost – Climate Emergency: Feedback Loops
10:54 | Permafrost, an icy expanse of frozen ground covering one-quarter of the Northern Hemisphere, is thawing. As it does, microscopic animals are waking up and feeding on the previously frozen carbon stored in plant and animal remains, releasing heat-trapping gases as a byproduct.
Part 2: Forests – Feedback Loops: Climate Change
14:09 | The world’s forests are responsible for removing a quarter of all human carbon emissions from the atmosphere and are essential for cooling the planet.
Part 1: Introduction – Climate Emergency: Feedback Loops
13:09 | Fossil fuel emissions from human activity are driving up Earth’s temperature — yet something else is at work: the warming has set in motion nature’s own feedback loops which are raising temperatures even higher.