Global warming?

When I was a young man, some people predicted Global Warming. But they were considered to be totally off the wall by the majority of other scientists who predicted that there would be, instead, a period of Global Cooling. Another Ice Age, if you will.

Then, suddenly, the Global Warming theory was in the ascendancy. Why? Well, the cynical wonder if the reason is that some powerful people realised you could make a lot of money out of pretending that CO2 was a vile, evil pollutant (Carbon Credit Exchanges, which change hands for potentiality Billions of Dollars) whereas the only way to make money out of a new Ice Age was to sell more knitwear...