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The Audio PostsOctober 6, 2022 10:55 pm

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Staking out the start of the Anthropocene, and why sunscreen is bad for coral

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On this week’s show: Geoscientists eye contenders for where to mark the beginning of the human-dominated geological epoch, and how sunscreen turns into photo toxin

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We live in the Anthropocene: an era on our planet that is dominated by human activity to such an extent that the evidence is omnipresent in the soil, air, and even water. But how do we mark the start? Science Staff Writer Paul Voosen talks with host Sarah Crespi about how geoscientists are choosing the one place on Earth that best shows the advent of the Anthropocene, the so-called “golden spike.”

 

Also this week, Djordje Vuckovic, a Ph.D. candidate in the department of civil and environmental engineering at Stanford University, joins Sarah to talk about how sunscreen threatens coral reefs. Reefs are under a lot of stress these days, from things like warming waters, habitat destruction, and the loss of their fishy friends to voracious fishermen. Another suspected stressor is chemical sunscreens, which drift off swimming tourists. It turns out that common chemicals in sunscreen that protect skin from the Sun are modified by sea anemones and corals into a photo toxin that damages them when exposed to the Sun’s rays.

 

This week’s episode was produced with help from Podigy.

 

[Image: Amanda Tinoco; Music: Jeffrey Cook]

 

[alt: photo of healthy corals at the Great Barrier Reef in Australia with podcast symbol overlay]

 

Authors: Sarah Crespi; Paul Voosen

 

TWEET

New @ScienceMagazine Podcast:

@voooos

Djordje Vuckovic @cee_stanford

https://www.science.org/doi/10.1126/science.abq8294

 

This week on the @ScienceMagazine Podcast, reporter @voooos

 

https://www.science.org/doi/10.1126/science.abq8294

 

 

 

 

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LINKS FOR MP3 META

 

Episode page: https://www.science.org/doi/10.1126/science.abq8294

 

About the Science Podcast: https://www.science.org/content/page/about-science-podcast

 

 

 

 

 

 

 

 

 

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