Unit 1
On Thin Ice
The (Not So) Great Wall
Keeping Venice Afloat
Out on a Limb: Saving the Orangutan
Unit 2
Volunteers Make a Difference
America's Kids Unite
Young People Make a Difference
Unit 3
Long-Lost Cities of the Amazon
The Amazon Under Fire
Unit 4
Power to the People
Playing for Peace
Unit 5
Hot Shots
Soulful Stitches
Unit 6
Art from Africa
Putting Himself on Canvas
Unit 7
Conflict in Afghanistan
Conflicting Needs in Indonesia Threaten the Orangutan
Unit 8
Is China's Trade a Threat?
