An opinion piece on OpEd News points to an interesting paper by Lynn Osburn. Appearing to have been written in 1990, Toward a Green Economy outlines some of major environmental dilemmas caused by our economy, and then explores how industrial hemp might be able to solve them. Here’s an excerpt on how using industrial hemp for paper production can save forests:
About seventy-five years ago two dedicated USDA scientists projected that at the rate the U.S. was using paper we would deplete the forests in our lifetimes. [...] So USDA scientists Dewey and Merrill looked for an alternate agricultural resource for paper products to prevent the disaster we now face.
They found the ideal candidate to be the waste material left in the fields after the hemp harvest. The left over pulp, called hemp hurds, was traditionally burned in the fields when the hemp fiber had been removed after the time consuming retting (partially rotting the hemp stalk to separate the fiber from the hurds) process was completed.
Hemp hurds are richer in cellulose and contain less lignin than wood pulp. Dewey and Merrill found after much experimentation that harsh sulfur acids used to break down the lignin in wood pulp were not necessary when making paper from hemp hurds. Sulfur acid wastes from paper mills are known to be a major source of waterway pollution. The coarse paper they made from hemp hurds was stronger and had greater folding durability than course wood pulp paper. Hemp hurd paper would make better cardboard and paper bag products than wood paper. They found the fine print quality hemp hurd paper to be equal to writing quality wood pulp paper. [ Dewey and Merrill, Bulletin #404, Hemp Hurds As Paper-Making Material, U.S.D.A., Washington, D.C., October 14, 1916.]
The only problem to implementing the paper industry resource change from wood to hemp hurds was machinery to separate hemp fiber from the hurds needed to be developed. Separation was still done by hand after the machine breaks had softened the hemp stalks.
The paper seems focused on how forests need to be protected because emissions aren’t going to go away. Of course, hemp has quite a few uses that can help us cut down on emissions, such as biofuel and replacing a slew of other synthetic products that cause emission when manufactured. Mind you, Toward a Green Economy was written nearly two decades ago, so many of the advances in hemp processing that we have today had not yet been made.