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Fall foliage is still a mystery: Why do some leaves turn red?
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Manage episode 518108329 series 2653190
Content provided by NPR. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by NPR or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
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 [email protected].
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.
Learn more about sponsor message choices: podcastchoices.com/adchoices
NPR Privacy Policy
…
continue reading
Read more of Nell's reporting on this topic.
Interested in more seasonal science? Email us your ideas at [email protected].
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.
Learn more about sponsor message choices: podcastchoices.com/adchoices
NPR Privacy Policy
1380 episodes
MP3•Episode home
Manage episode 518108329 series 2653190
Content provided by NPR. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by NPR or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
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 [email protected].
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.
Learn more about sponsor message choices: podcastchoices.com/adchoices
NPR Privacy Policy
…
continue reading
Read more of Nell's reporting on this topic.
Interested in more seasonal science? Email us your ideas at [email protected].
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.
Learn more about sponsor message choices: podcastchoices.com/adchoices
NPR Privacy Policy
1380 episodes
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