Environmental damage or degradation is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems and the extinction of wildlife. It is defined as any change or disturbance to the environment perceived to be deleterious or undesirable. (drafted from Wikipedia)

Broader: LEO Thesaurus
Alternative labels:
ecological damage
ecosystem degradation
environmental degradation
environmental depletion
environmental disruption
environmental loss