Go google Time Magazine ice age. Back in the 70s and 80s “leading experts” told us we were heading for another ice age. Then when that didn’t happen it became the hole in the ozone layer. Then it was global warming. Since no warming can factually be shown, they rebranded it to climate change. That is easier to sell because people see the weather change, but they don’t check 100 year plus records to see it was hotter then. It’s always been a Chicken Little the sky is falling bunch of #$%$ used as an excuse to tax people and industry.