ALSO BY JOHN GREEN
Looking for Alaska An Abundance of Katherines Paper Towns Will Grayson, Will Grayson WITH DAVID LEV
green quiz1. Ecological footprint means: a. a human activity aiming at saving our planet b. a measure of human impact on Earth's ecosystems c. an amount of carbon dioxide produced by a person 2. What is embodied energy? 3. A material with high therma
ALSO BY JOHN GREEN
Looking for Alaska An Abundance of Katherines Paper Towns Will Grayson, Will Grayson W ITH DAVID LE
