Indirect Effects Of Greenhouse Gasses - Earth's Heat Balance

The video explains the concept of feedbacks in climate change, highlighting two types: positive feedbacks, which amplify warming, and negative feedbacks, which reduce it. It identifies four main areas where feedbacks occur: air, ice, oceans, and land. The focus is on atmospheric feedbacks, where increased CO2 leads to warmer air that holds more water vapor, a greenhouse gas, thus amplifying warming. Clouds, formed from water vapor, can have either positive or negative feedback effects depending on their type and amount.

What is the primary role of positive feedbacks in the climate system?

• To decrease the warming caused by greenhouse gases

• To amplify the warming caused by greenhouse gases

• To stabilize the climate system

• To have no effect on the climate

Which of the following is NOT one of the main areas where climate feedbacks occur?

• The atmosphere

• The forests

• The oceans

• The ice

How does CO2 addition to the atmosphere primarily affect the air?

• It cools the air

• It has no effect on the air

• It warms the air

• It makes the air more humid

What is the most significant positive feedback in the climate system?

• Cloud formation

• Water vapor

• Ice melting

• Ocean currents

How can clouds affect climate feedbacks?

• They have no effect on warming

• They always increase warming

• They can either increase or decrease warming

• They always decrease warming