Dear Andrey, dear Victor,

Based on the recommendations of the two referees, I am happy to accept your manuscript for publication, subject to the revisions that the two referees demand. Note that both referees in one way or the other ask for more clarity, e.g., with respect to the goals and conclusions of your study.

Thank you for your detailed comments on both reports, which may form the basis of your point-by-point responses that I ask you to submit along with the carefully revised manuscript. Please include in your revised manuscript a paragraph that summarizes your view on which proxies have the highest potential to constrain the "CO2 recipe" or "CO2 stew" (along the lines of p. 7 of your comments).

With kind regards,

André

Dear Andrey, dear Victor,

Thank you for the very detailed response to the referee reports and the careful revision of your manuscript, which indeed proved to be significant. Your exchanges with the referees are a valuable reading in their own. I am very happy to accept your manuscript for publication subject to some technical corrections.

With kind regards,

André