We add to the understanding of DEI within the field of environmental economics by examining gender differences in a ubiquitous task in academia that has a large public goods component and where private rewards are uncertain: refereeing. We use the entire universe of submissions to JAERE from 2014-2021 in our analysis, assigning gender based on names of editors and referees. Using manuscript fixed effects and controlling for referee experience, we find that male and female referees in JAERE are similar on several dimensions. An important difference is when referees are late submitting a report, female referees are late by fewer days, and this effect is more pronounced when the handling editor is more senior. Since nearly all other dimensions of the report are the same, we interpret this as female referees putting in more effort conditional on being late. Because perceived reputational consequences are likely most salient along the dimension of lateness rather than other aspects of refereeing which are more subjective (e.g., rejection decisions, word count, etc.), this behavior is consistent with a model in which female referees perceive greater reputational costs for submitting late referee reports.