Suggestion: do not use www.redefiningprogress.org to calculate your ecological footprint.

Use the Ecological Footprint Calculator from Global Footprint Network instead.

Use a class size of 24 families, 2 vehicles per family, to estimate class CO₂ footprint.

Bottom of page 15: 4.9 acres refers to land available per person.

Top of page 16: "ecological imprint" should be "ecological footprint".

Page 17: "environmentally conscience" should be "environmentally conscious".

Table on page 18: World average in column 4 should be 6.9/4.9 = 1.4

Question 3c on page 18 can be answered in several ways. Assume a population size of 300 million for U.S. and 150 million for Bangladesh.