U.S. teens smoke more marijuana, but back off other drugs -survey

[RainDog]

6. As I and others here have noted

your claim does not match current reality.

Also, groups that are pro-legalization have been using gas chromatography to measure the level of THC in various hybrid strains and, yes, there are many strains now that have higher levels of THC than would have been considered the norm thirty years ago.

One way this is demonstrated, btw, is by the creation of a strain specifically for children who suffer from a form of epilepsy. CBD, not THC, is the useful component of cannabis that halts or reduces seizures. When parents went looking for high CBD strains, they were hard to find because cannabis plants produce CBD and THC in adverse proportion. The greater the THC, iow, the lower the CBD. Someone is now cultivating cannabis with low THC/high CBD just for the purpose of helping children with epilepsy.

CBD does have calming effects, but not the psychotropic high that people experience from THC - so, contrary to your anecdotal experience, the reality is that there are many strains of cannabis produced and consumed that contain higher levels of THC than the average cannabis in the past - they were bred specifically for the purpose of increasing THC levels.

Cannabis, of course, isn't just one thing - there are three species. Ruderalis has little to no psychotropic effect but Sativa and Indica have specific effects. Most plants that are grown indoors for consumption are hybrids of these two species.