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KPCC's Science Reporter
Jacob's time in journalism began when he was 16, when he'd skip high school to spend his days working on the mid-day newscast at KPFK in Los Angeles.
Since then he's worked at NPR in Washington, D.C., as a producer on "The Madeleine Brand Show" and "Take Two" at KPCC and as a reporter, covering the political and social impact of California's new marijuana industry.
Now, he's the science reporter for the station.
Stories by Jacob Margolis
Nearly three-quarters of the state's worst fires have happened since 2000. Experts blame forest management techniques, home construction in wilderness and climate change.
The hills of Southern California are lined with invasive grasses, which after a hot, dry year, were ready to ignite with a spark.
Scientists say a warming planet is likely to exacerbate the factors that led to this week's firestorms.
You'll have to be 21 or older to buy recreational weed, you can't smoke it in public and you can get in a whole lot of trouble for giving it to a minor.
Virgil Grant started in the marijuana industry by wholesaling suitcases full of marijuana to people in Compton. Now, three decades on, he wants to run the L.A. market.
We quizzed him in preparation for the rise of the recreational marijuana business in California.
Gobble gobble GASP! We could see record heat on Thanksgiving, thanks in part to two high pressure systems.
Now scientists have figured out how the fly stays dry even though it can stay submerged for 15 minutes. Yet another otherworldly aspect of Mono Lake.
As global temperatures continue to climb, animals have to adapt. For 202 different species of California birds, that means nesting earlier in the year.
Separated by the 101 freeway, different groups of the same species are adapting to microclimates, kicking off the evolutionary process.
High pressure over the Great Basin is bringing unseasonable heat to Southern California.
You can credit (or blame) La Niña. These conditions were also present last year, but California was bombarded by storms.
Two neutron stars collided 130 million light years away, but researchers only had hours to prepare before they'd miss their window to see the event.
This week's mass shooting in Las Vegas has resurfaced painful memories in the Inland Empire city -- site of firearms massacre in 2015.
When the tsunami dragged debris from Japan into the Pacific, dozens of marine species made the trash their home. They crossed the ocean and arrived on our shores.