10. Substance Abuse

The United Nations reports that, by the beginning of the 21st century, an estimated 185 million people over the age of 15 were consuming drugs globally. The drugs most commonly used are marijuana, cocaine, alcohol, amphetamine stimulants, opiates and volatile solvents. Different classes of people, both poor and rich, partake in substance abuse, and it is a persistent issue throughout the world. Petitions and projects are in progress to end the global issue of substance abuse.