Question

Which process can increase the rate of greenhouse gas emissions into the atmosphere in response to a decrease in albedo?

Answer 1

B. Ice-albedo feedback

Explanation:

The ice-albedo feedback is one process that can significantly increase the rate of greenhouse emissions in response to a decreased albedo.

Albedo is the ratio of reflected light to incident light.

A decrease in albedo suggests that a surface is absorbing more light than it is reflecting. This is typical of areas with land cover and vegetation.

Areas with a high reflectivity have a high albedo. Snow, ice and polar regions are good reflectors of solar radiation. They have a very high albedo close to 100%. Much of the surface area is buried with ice.

Examples of greenhouse gases are carbon dioxide, methane, water vapor e.t.c

How does a low albedo relates to increase in greenhouse gas emission?

• The ice-albedo feedback can substantially contribute to greenhouse gas emission.
• The high reflectivity of ice causes long wave radiation to warm the air around a icy body in polar regions.
• When ice melts, they leave land bare and exposed.
• Melt water collects in pockets.
• Exposed land leads to a decrease in albedo.
• Organisms can thrive more in warm terrain.
• Also, pockets of carbon dioxide gases trapped in ice is released.
• Organisms release carbon dioxide into the atmosphere during cellular respiration.
• Soils originally permafrost will become stable and this will encourage more human occupation of the area.
• All these activities leads to an increase in the emission of greenhouse gases in an area with low albedo.

Learn more:

Greenhouse emission brainly.com/question/4580761

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