It is a pity Popper did not live to see that Global Warming fit perfectly into his model of a pseudo-theory. It is vaguely and imprecisely formulated. It fails the falsifiability test, because all new evidence is made to fit by enlarging the theory. When originally formulated in the 1980s, Global Warming produced by man-made emissions would lead, it was argued, to much higher temperatures and desiccation. There would be a huge drop in rainfall and an imperative need to build seawater desalination plants. I recall an unusually dry summer (1987) in the English Lake District, normally rainy, was triumphantly presented as "absolute proof" of the theory. This autumn, the Lake District had an unusually wet spell, culminating in floods that engulfed the delightful town of Cockermouth, where Wordsworth was born. This was pounced upon by Global Warming "experts" as "absolute proof" of their theory, and paraded as such in Copenhagen.
The fact is that the theory has now been expanded to include any unusual form of weather, anywhere. Hot summers, warm winters -- global warming. Cold weather at an unusual time of year -- global warming. Drought, storms, floods -- global warming. No snow on the ski slopes, sudden snow, out of season snow, very heavy snow -- global warming.
It is a form of pantheism and a useful emotional outlet for people who have renounced Judeo-Christianity. If someone is anti-American, left-liberal, and atheist, it is virtually certain he (or even she: women are notoriously more skeptical about it than men are) is a Global Warmer.
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I always love asking if the theory of evolution is falsifiable. That usually makes for a fun evening.
Think we need to get over the ‘Save the Planet’ meme. It is not possible. This planet will die. Simple Astrophysics. It cannot be saved. About the best we can do is too escape its inevitable death.
Bump.
Popper’s test also applies to social theories, although political lies may be harder to show falsehood to those espousing the suspect theories.
One current popular social theory is that it is a social good to tolerate and even celebrate homosexuality. This is become force of US Law [albeit case law] since Lawrence v Texas, and has played out in the state by state battles over homosexual ‘marriage’, and now the proposal to allow open homosexuality in the military.
Popper bump/ping.