Kendall Valentine

Conflicts of Interest The authors declare no conflicts of interest. Supporting Information Filename Description gbi70011-sup-0001-DataS1.xlsxExcel 2007 spreadsheet , 11.5 KB Data S1. Spheres raw data of measured sediment and organic matter. gbi70011-sup-0002-DataS2.docxWord 2007 document , 2.5 MB Data S2. Supplementary Text including methods detail and supplementary figures. gbi70011-sup-0003-TableS1.xlsxExcel 2007 spreadsheet , 174.5 KB Table S1.

Fieldwork is integral to geoscience but can come with risks that increase for fieldworkers who are pregnant. Consultation with medical staff and completion of risk assessments are essential steps, but pregnant individuals also benefit from supportive colleagues, reasonable accommodations, and the freedom to adapt plans as pregnancy progresses.

1 Introduction Atmospheric carbon dioxide (CO2) is on a steady increase, and natural carbon sinks have been getting attention as a means of mitigating the increasing levels of CO2 (Jacquemont et al., 2022). Global budgets describing the pathways, sinks and sources of carbon are important tools for future research and conservation efforts, but are difficult to obtain and remain with large uncertainties (Friedlingstein et al., 2022).