Paper use globally is on the rise, particularly for packaging materials. Roughly half of paper is used once and then sent to the proverbial scrap heap. But the other half is recovered and repurposed. In some places, that recovery rate reaches 75 percent. Bringing the world up to that level can reduce emissions of the paper industry, estimated to be as high as 7 percent annually.
Recycling makes paper’s journey circular, rather than a straight line from logging to landfill. Instead of relying on fresh timber to feed the pulping process—and releasing carbon with each tree cut—recycled paper draws on existing material, either discarded before reaching a consumer’s hands or, ideally, after serving its intended purpose. Instead of releasing methane as it decomposes in a landfill, wastepaper finds new life.
Once recovered, used paper is shredded, pulped, cleaned, and rid of contaminants. It can then be made into any number of products, from office paper to newsprint to toilet paper rolls. A particular piece of paper can be reprocessed roughly five to seven times, before fibers are no longer viable. In addition to curbing emissions, recycled paper spares forests and reduces water use.
Technical summaries for each solution will be available May 1, 2017.