Exclusive: French survey of 26 countries finds fewer Australians than global average agree that climate change is the greatest health threat facing humanity
I mean, I guess, technically, yeah... But geez, for something that's been settled science for well and truly over two decades now, that's a pretty appalling score.
So, the point in time that I was trying to point to was not just when some science had been done, but when the amount of research into the area was so overwhelming, and so widely available, that any lay person who even just casually reads reliable news sources cannot possibly not be familiar with it. The point at which there is no longer any excuse for not knowing about and accepting the science, beyond wilful ignorance. A deliberately vague concept that can't be pinned down to one specific date, but that has, as its absolute upper bound the Kyoto Protocol, which was first signed over two decades, but not quite three, ago.
This "majority" of a 60 / 40 poll is what the US constantly does too in their news articles. It's just flowery language that make the situation sound better than it actually is.