Abstract: One of the projected negative consequences of global warming is a concomitant increase in climatic variability, including more frequent hot weather events. It is a relatively easy matter to either substantiate or refute such claims by examining trends in extreme temperatures over the past century or so; because if global warming has truly been occurring at an unprecedented rate over the past hundred years, as climate alarmists claim it has, temperature variability and extreme temperature events should be increasing, according to them. Therefore, this review investigates this issue as it pertains to locations in North America.From the text:
"The maximum temperature values are getting less hot and minimum temperature values are getting less cold with time," signaling a reduction in overall temperature variability."
"It is clear that when it comes to extreme warm temperature events over the USA, they are no more prevalent currently than they were in the 1930s. In fact, they may well be even less prevalent nowadays."
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"Such findings suggest that it is therefore not yet statistically justifiable to attribute any individual heat wave or "proliferation of recordbreaking temperature events" to historical global warming, be it CO2-induced or otherwise."