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Scientists know why leaves turn yellow in the fall: Chlorophyll breaks down, revealing the yellow pigment that was there all along. But red? Red is a different story altogether. Leaves have to make a new pigment to turn red. Why would a dying leaf do that? Scientists don’t really know. NPR science correspondent Nell Greenfieldboyce reports on the leading hypotheses out there.
Read more of Nell's reporting on this topic.
Scientists know why leaves turn yellow in the fall: Chlorophyll breaks down, revealing the yellow pigment that was there all along. But red? Red is a different story altogether. Leaves have to make a new pigment to turn red. Why would a dying leaf do that? Scientists don’t really know. NPR science correspondent Nell Greenfieldboyce reports on the leading hypotheses out there.
Read more of Nell's reporting on this topic.
Interested in more seasonal science? Email us your ideas at shortwave@npr.org.
Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.
See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences.
NPR Privacy Policy
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This is an episodic podcast, so you can listen to it in any order, but episode one is a great place to start.
Listen to episode one hereScientists know why leaves turn yellow in the fall: Chlorophyll breaks down, revealing the yellow pigment that was there all along. But red? Red is a different story altogether. Leaves have to make a new pigment to turn red. Why would a dying leaf do that? Scientists don’t really know. NPR science correspondent Nell Greenfieldboyce reports on the leading hypotheses out there.
Read more of Nell's reporting on this topic.
Interested in more seasonal science? Email us your ideas at shortwave@npr.org.
Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.
See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences.
NPR Privacy Policy
Sound Carrot is your source for Family Podcast Discovery. Verified awesome, 0% boring.
Distraction free website, no flashing banners or adverts to steal your attention.
(Some shows do contain their own ads however).
At first I made this site for my kids, but like any dad I got a little over excited. I hope you find it as useful as they do.
Whether you want to listen to them together in the car, or alone in your room - the content is all safe for younger ears.
