"What's Up?" Questions

The following questions appear at the end of segments 1, 2, and 3 in the television broadcast, The Case of the Mysterious Red Light.

Segment 1

• Will the tree house detectives find out what's causing the red sky?
• Could there be something causing low frequency waves in the sky?

Segment 2

• Is light being reflected or refracted?
• Can air pollution be causing the problem?
• Are there any other variables that have changed to make the sunsets and sunrises so red? If so, what could they be?

Segment 3

• Could the volcanic ash be causing the red sky?
• Could it be that all colors other than red are being absorbed by something?