4. Boek: 34 Kg of CO2 to make a book
Gewicht boek: 1,05kg -> 34 kg CO2
2000 kopieën binnenkant 119gr papier, kaft 300gr karton
-Wood extraction and paper production: 28,7%
-Design and writing of the book: 29,6%
-Transport of the paper to the printer's: 5%
-Printing and binding: 36,7% -> 12,5 Kg