Dear Author,

The discussion phase of your manuscript is now over and I encourage you to submit a version revised along the lines of your replies to the referees' comments.

Please find here (http://betterfigures.org/2014/11/18/end-of-the-rainbow/) a plea to help rid science of colour scales that can distort, mislead and confuse. Colour scales that are often illegible to those who are colour blind. See also: http://geog.uoregon.edu/datagraphics/EOS/. Importantly, green and red colors must not be used in the same figure. This means that you need to redraw several of your figures. Therefore, the colour palette of figure 1 must be changed.

Biogeosciences strongly promotes the full availability of the data sets reported in the papers that it publishes in order to facilitate future data comparison and compilation as well as meta-analysis. This can be achieved by uploading the data sets in an existing database and providing the link(s) in the paper. Alternatively, the data sets can be published, for free, alongside the paper as supplementary information. The ascii (or text) format is preferred for data and any format can be handled for movies, animations etc…

Best regards,
Jean-Pierre Gattuso

Dear Author,

Thank you for submitting a revised version of your manuscript submitted to Biogeosciences, which I am glad to accept for publication.

I look forward to seeing this paper published and thank you for considering Biogeosciences to publish these very interesting results.

Best regards,
Jean-Pierre Gattuso
BG Editor