Question
Download Solution PDFWhen troposphere becomes cloudier, it causes, more reflection of solar flux. In the context of Global Warming, this is an example of:
Answer (Detailed Solution Below)
Option 2 : Negative feedback
Detailed Solution
Download Solution PDFThe correct answer is - Negative feedback
Key Points
- Negative feedback
- In the context of Global Warming, negative feedback mechanisms work to stabilize or reduce the warming effect.
- A cloudier troposphere increases the reflection of solar flux, meaning more sunlight is reflected back into space, leading to a cooling effect.
- This cooling effect counteracts the warming, hence acting as a negative feedback mechanism.
Additional Information
- Feedback Mechanisms
- Positive feedback
- Amplifies the initial change; for example, melting ice reduces albedo, leading to more absorption of heat, and further warming.
- Negative feedback
- Reduces the initial change; for example, increased cloud cover reflecting more sunlight and cooling the Earth.
- Positive feedback
- Troposphere and Clouds
- The troposphere is the lowest layer of Earth's atmosphere where weather phenomena occur.
- Clouds in the troposphere can reflect sunlight (albedo effect) and influence Earth's energy balance.
- Global Warming
- Refers to the long-term rise in Earth's average temperature due to human activities.
- Understanding feedback mechanisms is crucial for predicting climate change impacts.