His memory was when the phrase "global warming" became "untenable and changed to "climate change"". That's what's wrong. The phrase "Climate Change" was not int

His memory was when the phrase "global warming" became "untenable and changed to "climate change"". That's what's wrong. The phrase "Climate Change" was not introduced late on because there was some problem with "global warming". It's been in use from the start. If he'd said "unfashionable" rather than "untenable" then he'd have been closer to the mark.