In the 1970s, there were a few interesting articles published on the possibility of cooling, but they were fairly quickly dismissed . And that was it. I very much doubt there was any serious betting on it, because at that time climate change wasn’t a matter of politicised debate. Perhaps a few climate scientists bet each other £10.

We’ve known what trajectory we’ve been on since t he 80s with increasing certainty each year. In 1988 Margaret Thatcher dedicated her entire address to the UN General Assembly on the science, the threat and how coordinated international action would be needed https://youtu.be/VnAzoDtwCBg

Yes, they’re are climate cycles. This is being driven my human activities