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Christopher Osher

Reporter · US

Indexed articles, last 90 days
3
Latest publication
Sep 25, 2026
Outlet visibility, for ProPublica
Top 500K sites
Earliest in this view
Sep 4, 2026

Latest articles

  1. Article · Sep 25, 2026 · Christopher Osher

    Colorado Marijuana Company Voluntarily Recalls Dozens of Contaminated Products Amid State Regulatory Delays (opens the original)

    Excerpt · Critical tone · English

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    A Colorado manufacturer of a popular brand of marijuana vapes warned dispensaries last week that it is recalling products due to contamination by methylene chloride, a chemical the Environmental Protection Agency has sought to ban for most uses because it can cause cancer. The recall comes amid a protracted delay in state implementation of expanded testing procedures that would have detected methylene chloride and other solvents that pose health risks. The manufacturer, StayCon, voluntarily flag

  2. Article · Sep 17, 2026 · by Christopher Osher and Evan Wyloge, The Denver Gazette

    Smoke and Mirrors Archives (opens the original)

    Excerpt · Critical tone · English

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    Colorado, which once served as the model for marijuana regulation, generated billions of dollars in tax revenue while promising to keep consumers safe. Now it’s scrambling to keep harmful hemp off the shelves. Colorado’s Marijuana Enforcement Division can take months or even years to issue formal safety warnings about marijuana products even when it receives reports that the products are harming people’s health, The Denver Gazette and ProPublica found. ProPublica and The Denver Gazette set out t

  3. Article · Sep 4, 2026 · Christopher Osher and Evan Wyloge

    She Used Legal Marijuana Pills to Help Her Sleep. She Now Has Liver Damage. (opens the original)

    Excerpt · Critical tone · English

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    These highlights were written by the reporters and editors who worked on this story. In March 2022, Colorado public health officials started getting startling reports of liver damage tied to a new marijuana-based sleep aid that had quickly become a top seller in the state. But it wasn’t until June 2023, nearly 15 months later, that the state’s Marijuana Enforcement Division would warn consumers that the danger had become so serious that the manufacturer had halted production of the sleep pills,

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