 SCF Marine Inc. SCF, a subsidiary of SEACOR Holdings Inc. CKH, today announced that its container on barge service, operated by SEACOR AMH AMH, is participating in a 12-month accredited U.S.-based carbon offset program starting June 2020. Through this initiative, diesel carbon emissions from AMHs container service and the St. Louis, Memphis, and Port Allen terminals will be offset to achieve carbon neutrality, a benefit AMH is proud to extend to its direct and indirect customers, said Rich Teubner, vice president of AMH. 