The Global Warming Hypothesis. A few years ago, having been alarmed - and largely convinced - by Al Gore's film An Inconvenient Truth, I decided to seek confirmation by my own devices. Rather than take the experts' word for it - clever and sincere though they clearly were - I would devise my own tests. Some of these experts were hero-figures such as the great geneticist Steve Jones and the sainted David Attenborough. Surely, I thought, the authors of The Language of the Genes and Life on Earth wouldn't join in with a fallacy; with sodding groupthink. It Steve & Dave say it's so then, I reasoned, so it must jolly well be. But (ah, the curse of having an independent mind) I needed to satisfy myself.
Of the many dimensions of Global Warming, I chose to look at the Earth's icecaps and glaciers - the "cryosphere". There were other aspects (such as sea levels and temperature records) worthy of some forensic digging, but I chose the cryosphere.