Auxiliary Material Submission for?
Climate Impacts of a Large-Scale Biofuels Expansion.
Willow Hallgren (1), C.Adam Schlosser (1), Erwan Monier (1), David Kicklighter (2), Andrei Sokolov (1), Jerry Melillo (2).?
(1) Joint Program on the Science and Policy of Global Change, Massachusetts Institute of Technology, Cambridge, MA, U.S.A
(2) The Ecosystems Center, Marine Biological Laboratory, 7 MBL Street, Woods Hole, MA 02543, U.S.A

Introduction
The supplementary material consists of a text file "Supplementary Material_GRL.txt" which contains further details on the methodology employed in our study, specifically the data we used to run the models, and the how we modified the land surface in the land surface model to represent biofuels. There is also additional information about the models, particularly how well they've been validated in the literature, as well as more information on our experimental set up. We also list the author contributions and provide one additional reference for information provided in the supplementary material. There is a Table file "Suppl_TableS1.pdf" which contains "Table S1" which shows the conversion of the IGSM-TEM plant functional types to those required by the CLM model run within the version of CAM that we employed in our study. There is a Figure file "Suppl_FigS1.pdf containing "Figure S1" which shows a schematic representation of the modeling frameworks we employed in our study. 
1. Supplementary_Material_GRL.txt contains information on methods, data, the modification of the land surface in CLM, further details about the models and experiments, author contributions and an additional references for supplementary material.
2. Suppl_TableS1.pdf  (Table S1)
2.1. Column "CLM Land cover type", categories of land cover type existing in the land surface model CLM.
2.1. Column "IGSM-TEM veg fitted into CLM categories", the categories of IGSM-TEM vegetation types which have been converted into CLM land cover types.
Suppl_TableS1.txt: Converting from 35 TEM land cover/veg types to 17* CLM vegetation types 
Suppl_TableS1_footnote.txt: * Crop 2 (ÔwheatÕ) is currently uncharacterised (empty) in CLM3.0
3. Suppl_FigureS1.pdf  (Figure S1) The offline coupling of IGSM 2.2 and CAM3.1-CLM3.0 used in this study. The stippling indicates the modeling framework used in Melillo et al. (2009).