Online
Re-nourish — we use the project calculator for nearly every print project
A Better Source and Waste Not— databases of sustainable materials ranging from paper stocks to packaging substrates
INGEDE — in-depth information about about de-inkability of various production methods—a problem affecting certain digital presses
Sustainable Packaging Coalition — free downloadable PDFs with tons of information about designing sustainable packaging
Becoming a Climate Designer Course — A six-week course for practicing designers on how to make a meaningful impact.
Lumi Properties Guide — A great overview of packaging terminology; their blog also contains a slew of great articles on sustainable packaging.
Climate Designers — network of designers committed to using their creative skills for climate action
Books
Brian Dougherty’s “Green Graphic Design” — the best book for beginners, this book is filled with case studies and lots of practical information
Eric Benson and Yvette Perullo’s “Design to Renourish” — a modern primer on systems thinking, an important framework for sustainable design
Adrian Bullock and Meredith Walsh’s “The Green Design and Print Production Handbook”
Aaris Sherin’s “SustainAble” — a lot of the same information as the two aforementioned books but fills in some gaps
Wendy Jedlička’s “Sustainable Graphic Design” — the best book for advanced green graphic designers, a vast amount of information