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When the troposphere becomes cloudier, it causes more reflection of solar flux. In the context of Global Warming, this is an example of:
Question

When the troposphere becomes cloudier, it causes more reflection of solar flux. In the context of Global Warming, this is an example of:

A.

Positive feedback

B.

Negative feedback

C.

Neither positive nor negative feedback

D.

Both positive and negative feedback

Correct option is B

In the context of global warming, an increase in cloud cover in the troposphere results in the reflection of more solar radiation back into space, which leads to cooling effects on the Earth’s surface. This is an example of negative feedback because it helps counteract the initial warming by reflecting solar radiation and reducing the temperature. Negative feedbacks work to stabilize a system, reversing the effects of the initial change.

Information Booster:

  1. Negative feedback occurs when a change in a system triggers processes that reduce the effects of that change, helping the system return to its original state.

  2. Clouds reflect a portion of solar radiation, reducing the amount of heat reaching the Earth's surface, which can slow down global warming.

  3. This feedback mechanism is crucial in controlling Earth's climate system, as it can help mitigate excessive temperature increases.

  4. Negative feedback is considered stabilizing because it works to counterbalance the warming effect.

  5. Clouds can have different effects on climate, depending on their type, altitude, and location. Some clouds may have a warming effect, while others, like in this scenario, may cool the Earth.

  6. Cloud formation itself is influenced by a variety of factors, including temperature and humidity, further demonstrating the complex interactions in climate systems.

Additional Information:

Positive feedback, in contrast, amplifies the initial change. For instance, as the Earth warms, ice melts, reducing the reflective surface area (albedo) and causing more sunlight to be absorbed, leading to further warming.

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