This story is part of a special series that explores the global water crisis. For more clean water news, photos, and information, visit National Geographics Freshwater Web site.

How’s this for a sweet surprise: A team of researchers in Washington State has found traces of cooking spices and flavorings in the waters of Puget Sound. (See map.)

University of Washington associate professor Richard Keil heads the Sound Citizen program, which investigates how what we do on land affects our waters. Read the full story

The American Medical Assn. changes its policy to promote clinical research and development of cannabis-based medicines and alternative delivery methods.

The American Medical Assn. on Tuesday urged the federal government to reconsider its classification of marijuana as a dangerous drug with no accepted medical use, a significant shift that puts the prestigious group behind calls for more research.

The nation’s largest physicians organization, with about 250,000 member doctors, the AMA has maintained since 1997 that marijuana should remain a Schedule I controlled substance, the most restrictive category, which also includes heroin and LSD.

In changing its policy, the group said its goal was to clear the way to conduct clinical research, develop cannabis-based medicines and devise alternative ways to deliver the drug.

“Despite more than 30 years of clinical research, only a small number of randomized, controlled trials have been conducted on smoked cannabis,” said Dr. Edward Langston, an AMA board member, noting that the limited number of studies was “insufficient to satisfy the current standards for a prescription drug product.” Read the full story

By David Olmos

Sept. 12 (Bloomberg) — Drug-resistant bacteria that causes serious infections and is most commonly spread in hospitals was found on nine beaches in Washington state, scientists said. Read the full story

(NaturalNews) In a groundbreaking new study, researchers from the Karolinska Institute in Sweden have demonstrated that heart cells are able to regenerate themselves, overturning the conventional wisdom that the body cannot replace damaged heart cells.

Researchers immediately hailed the study as providing new hope for prevention and treatment of diseased hearts. Read the full story