This one comes up a lot, so I thought I’d copy and paste a recent answer here. Deniers will often bring up the shift, in news and political media, from talking about “global warming” to talking about “climate change”, as if this was something orchestrated by the political Left, just in the last few years.
Climate change has been a term used in the scientific community since at least the 1930’s, Daniel. It’s been the most common term, used by scientists, since at least the 1960’s.
Global warming was adopted in the popular press because it’s a simpler concept, and it catches attention. The shift to using “climate change” in the popular press and in politics came about because of a memo Frank Luntz sent to the GOP, telling them to use “climate change” because it sounds less scary.
The change in terminology ONLY happened in the popular/political press, and it was a change initially designed to serve the rhetorical purposes of the denial movement.