AP Photo/Gosia Wozniacka

As Pennsylvania lawmakers continue a long-standing debate over legalizing medicinal marijuana, one University of Pittsburgh study shows officials shouldn't overlook the importance of where those future clinics could crop up.

A state legislator from a much more rural portion of Pennsylvania wants to make it legal for farmers to grow industrial hemp. 

State Sen. Judy Schwank (D-Berks) said the level of THC, which gives cannabis its psychoactive effect, is so much lower than the plant used in the drug trade that it can hardly been considered in the same conversation.

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Support for legalizing medical marijuana is growing in Pennsylvania, according to a poll conducted by Robert Morris University.

The survey showed 67.5 percent of Pennsylvanians are in favor of legalizing medical marijuana, up from 56.1 percent in a similar RMU poll last year.

Advocates supporting medical marijuana legalization in Pennsylvania ran out of time and political good will last year, but people on both sides of the debate expect the issue to remain hot in 2015.

The health community is divided, with the state nurses' association supporting legalization, but the commonwealth doctors' group urging caution.

Pennsylvania Medical Society (PAMED) legislative counsel Scot Chadwick said, for now, marijuana remains far too mysterious.

State Sen. Mike Stack, a Philadelphia Democrat and candidate for lieutenant governor, is proposing to decriminalize the possession of small amounts of marijuana.

A local activist group will gather at Point State Park Saturday in an effort to “smoke out prohibition” of marijuana.

At 4:20 p.m. Saturday, the Pittsburgh regional chapter of the National Organization for the Reform of Marijuana Laws will hold a moment of silence to protest what it calls the war on cannabis. NORML promotes repealing the prohibition of marijuana.