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Dear colleagues, We would like to remind you to submit an abstract to the session, "Molecular Biogeochemical Impressionism: Painting the Big Carbon Picture with Many Small Strokes (Fall AGU # B29)", before the due date of September 3rd. Session description: The application of molecular-level analytical techniques - such as microbial genomics, high resolution mass spectrometry, and compound specific isotope analysis - in the Earth Sciences has shed new light on previously ill understood or completely unknown biogeochemical processes. Nonetheless, many representations of the modern carbon cycle, which serve as important reference points for past and future climate models, have thus far failed to adequately parameterize this information. This session aims to provide a forum to better integrate molecular-level insights into a broader conceptual and numerical framework. Submissions that quantitatively refine existing paradigms of organic matter dynamics both on land and in the oceans as well as regional and global syntheses of molecularly traced biogeochemical processes are particularly encouraged. Please feel free to pass this along to any interested parties. We look forward to your contribution. Best wishes, Gesine Mollenhauer ([log in to unmask]<mailto:[log in to unmask]>) Nick Drenzek ([log in to unmask]<mailto:[log in to unmask]>)