Kate Wing, an analyst with the Natural Resources Defense Council, just informed me that JK Rowling's Canadian publisher, Raincoast Books, printed their edition of "Harry Potter and the Half-Blood Prince" on 100 percent post-consumer recycled paper. (Link to a 2003 post about Raincoast Books' eco-consciousness.) From National Geographic:
Consequently, the Vancouver-based (Raincoast Books) may save nearly 30,000 trees, according a study by Markets Initiative, a coalition of environmental groups, including Greenpeace Canada and the Sierra Club.
Raincoast isn't the only publisher seeking to put a green tint on the wildly popular Potter books. Publishers from Germany, Italy, Britain, and Israel also comitted to printing Harry Potter and the Half-Blood Prince on large percentages of recycled paper and/or "ancient forest friendly" paper.
Link to National Geographic, Link to buy the book from Amazon.ca
Of course, you could also download it as a "pirated" ebook, as Cory pointed out yesterday.