Glossary beginning with H

HFCs (Hydrofluorocarbons)

halocarbons containing only hydrogen, fluorine and carbon atoms. Because HFCs contain no chlorine, bromine, or iodine, they do not deplete the ozone layer. Like other halocarbons, they are potent greenhouse gases.

HVO (Hydrotreated Vegetable Oil)

next generation biodiesel derived from vegetable oils.