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Stories by Julia Rosen

Alaska’s Salmon Are Shrinking

Every year, Alaska’s big salmon runs feature smaller salmon. Climate change and competition with hatchery-raised salmon may be to blame. Julia Rosen reports.

August 28, 2020 — Julia Rosen

Searching the Heavens for Mountains

Exoplanet hunters are moving beyond simply finding new planets into trying to know what they look like and whether there's surface or subsurface activity.  

March 9, 2018 — Julia Rosen

Ships at Sea Stoke Lightning Strikes

Exhaust fumes from oceangoing vessels lead to an almost doubling of lightning activity over shipping lanes compared to adjacent areas of the sea.  

October 17, 2017 — Julia Rosen

Springtime Now Arrives Earlier for Birds

A trove of scientific notes from the early 1900s suggests a warming climate is driving birds to migrate earlier to New York’s Mohonk Preserve. Julia Rosen reports.

September 20, 2017 — Julia Rosen

Extreme Storms Are Extreme Eroders

The storm that swept across the Rockies in September 2013 unleashed huge amounts of sediment downstream, doing the work of a century of erosion. Julia Rosen reports. 

April 5, 2017 — Julia Rosen
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