The seventh podcast on www.cyclostratigraphy.org is the first double-interview! Two new papers came out over the last couple of weeks, discussing the response of ocean productivity to astronomical forcing: Clara Bolton and her colleagues focus on the Pleistocene in Nature, whereas Boris Karatsolis and his team deal with the Mio-Pliocene biogenic bloom (Nature Communications). Their results seem contradicting at first, but this episode of CycloPod reveals that these two geologic time windows have more in common than expected. The Intro music of this podcast is again an excerpt of a piece based on the North Atlantic Oscillation from the "Aphrodite's Dew" book and CD project by Arvid Tomayko and Sandro Montanari. Check out more of their work at arvidtomayko.com.