Geologists, under pressure from their employers, have adopted practices which lead to the underreporting of earthquake hazards in relation to the siting of nuclear tests and installations, to the underreporting of groundwater pollution hazards in relation to the siting of toxic waste dumps, to the underreporting of geological hazards in relation to the construction of large dams, and to the failure to investigate adequately the nature of such hazards. Geologists are intimately involved in those corrupt practices associated with oil and mineral exploration, especially with the establishment of fraudulent claims.