'climate-changing' originates from the combination of 'climate' and 'changing', where 'climate' refers to the weather conditions prevailing in an area in general or over a long period, and 'changing' means making or becoming different.

'Climate' comes from the Greek word 'klima', meaning 'region, zone', and 'changing' is derived from the Old English 'changian', meaning 'to alter'.

Initially, it meant 'altering the climate', but over time it evolved into its current meaning of 'referring to the alteration of the climate due to human activities'.