"What can I do" includes supporting practiced, up-and-running legal protection systems for civil servants. A few dollars here, a few dollars there end up defraying major legal expenses entailed in court actions. Pro bono isn't everything.
An organization doing this for over a decade: The #ClimateScienceLegalDefenseFund.
Not only does #CSLDF directly help with individual cases but it also produces legal analysis and practical advice useful to all US civil servants.