noun

the action or process of causing so much damage to something that it no longer exists or cannot be repaired.

the destruction of the rainforest

demolition,knocking down,pulling down,tearing down,levelling,razing (to the ground),felling,dismantling,breaking up,wrecking,ruination,smashing,shattering,blasting,blowing up,dynamiting,bombing,carpet bombing,torpedoing,spoliation,devastation,spoiling,blighting,marring,disfigurement,impairment,defacing,scarring,injury,harm,laying waste,desolation,ravaging,wasting