Describe two examples of how the warmer temperatures due to ...

[CharlieWard]

Describe two examples of how the warmer temperatures due to increased CO2 in the atmosphere may lead to positive feedback effects.
 
  What will be an ideal response?

Question 2

When does Earth's perihelion, the point of orbit when it is closest to the Sun, occur?
 
  A) during the Northern Hemisphere's winter
  B) during the Northern Hemisphere's autumn
  C) during the Northern Hemisphere's summer
  D) during the Northern Hemisphere's spring
  E) due to Earth's circular orbit, year-round

[allisonblackmore]

Answer to Question 1

1. Warmer temperatures will result in more water evaporated. More water vapor in the atmosphere will increase the greenhouse effect.
2. Warmer temperatures will increase the melting of polar ice and snow. This will decrease the earth's albedo, allowing more solar radiation to be absorbed.

Answer to Question 2

A