Two millennia ago, Chinese Minister for Agriculture Tsai Lun in the first-century Han dynasty called for subjects of the emperor to boil old linen rags for papermaking. Professional recyclers in medieval England collected dust and ash left from fireplaces, then sold it to brick manufacturers as an inexpensive base material. More recently, World War II saw an uptick in recycling, with many common household items like clothes, scrap metal, and tires turned into new products for the war effort.
The legalization of recreational cannabis in Washington state and Colorado in 2012 opened a box full of questions and debates about the drug and its related crop, hemp.
What is the effect on youth? Will crime go up? How does cannabis interact with other drugs and medicines? What health claims are accurate? How does the potency of cannabis affect mental health? These gaps, and many others, in our knowledge—combined with unverified claims by both proponents and opponents of legalized cannabis—make it difficult to find the best ways to regulate and manage the substance.
To answer the call, almost 100 Washington State University researchers have begun … » More …