Science

The Senate minority leader refiles a bill to end federal marijuana prohibition, North Dakota decriminalizes, New Jersey's legalization effort appears stalled, and more.

The DEA has again refused to reschedule marijuana. Here's why it's not a big surprise nor that devastating.

Once again, the DEA refuses to quit treating marijuana like heroin.

A new report from the Drug Policy Alliance and the Multidisciplinary Association for Psychedelic Studies rips the DEA for obstructing research and ignoring science as it fights to keep marijuana Schedule I.

Portland's police chief demonstrates why local initiatives are only a start, a new Urban Institute report has ideas for reducing the federal prison population, the Irish parliament rejects marijuana legalization on its first go round, and more.

A trio of leading scientists, including British Professor David Nutt, have lambasted the prohibitions on psychoactive substances as amounting to censorship of science in a paper published Wednesday.

MedicalMarijuana.ProCon.org, part of the ProCon.org family, is an in-depth web site presenting information and views from a variety of perspectives on the medical marijuana issue. The Chronicle is running a six-part series of info items from ProCon.org, of which this week's is the first.