ecocide[ē′kō sīd′, ek′ō-]
the destruction of the environment or of ecosystems, as by the use of defoliants or the emission of pollutants
Origin of ecocideeco- + -cide
Heedless or deliberate destruction of the natural environment, as by pollutants or an act of war.
eco- + -cide
The term is said to have been first coined in the mid to late 1960's or early 1970's.