The George W. Bush administration (e.g. via Frank Luntz) advocated for the term "climate change" because Republican strategists wanted to leverage perceived uncertainty about global warming as much as possible.[0]
This is a PR effort that seems to have largely succeeded (both in adoption and its goals) and it's unfortunate that when we are literally talking about warming we adopt a term that is less precise; you are talking about global warming here.
[0] https://www.theguardian.com/environment/2003/mar/04/usnews.c...