Al Gore came to the rescue. Global cooling meant that government should stockpile food for everyone, but that would cost money. Switching to global warming would create a different agenda that they were familiar with. Like smoking, they could tax it to HELP people. Of course, when they did stop and tax revenues began to decline, they introduced taxes on e-cigarettes and didn’t try to deter people from smoking.
With global warming, they could tax everyone for things they did every day from driving a car to heating and cooling their homes. Suddenly, global warming was a lot more profitable for government than global cooling. The alarm bell stopped ringing that warned of a continued global cooling, seen between 1945 and 1968, that was creating a new Ice Age.
https://www.armstrongeconomics.com/world-news/climate/al-gores-global-warming-deliberate-fraud-to-increase-governmental-power/