Replace a book with a tree

This initiative by Eco Libris aims to replace each book purchased in the United States with a planted tree in Central America and Africa.

The United States uses about 20 million trees per year to produce about 4.15 billion books of which only 5-10 % is recycled material. Although major publishers have pledged to increase the recycled content of their books, there is still a long way to go.

I do not know if the scheme is available to readers outside the US (but I am sure they will not refuse your money), but this is what happens. Readers choose how many books they want to balance out with Eco Libris, pay for it online, and a tree will be planted for each of these books.
A specially designed Eco Libris sticker made from recycled paper, will then be sent to the donor to put on the cover of the books they have balanced out, to show their commitment to sustainability and responsible use of natural resources.

To ensure that donations are not misused, Eco Libris will work with planting partners chosen for their knowledge of local tree species, mixed forest planting, and the flora and fauna of the area. Eco Libris is currently working with: The Alliance for International Reforestation, Ripple Africa, and Sustainable Harvest International.

In order to make sure that trees planted attain maturity, Eco Libris hires local community members trained to tend the planted trees. 13 trees are planted for every 10 trees donated because not all of the trees will make it to maturity. The extra trees balance out the
anticipated loss through drought, disease, or some other malady.

It costs USD 5.00 to plant 5 trees (with discounts for larger numbers.) Eco Libris was formed a year ago on the 1st of July. They celebrated their first birthday having balanced out 50,005 books, with 65,586 new trees.

There is a lot more on their website.

Eco Libris