Ralph Alexander provides the facts and data in his GWPF paper Weather Extremes in Historical Context.  Excerpts in italics with my bolds and selected images.

Introduction

This report refutes the popular but mistaken belief that today’s weather extremes are more common and more intense because of climate change, by examining the history of extreme weather events over the past century or so.  Drawing on newspaper archives, it presents multiple examples of past extremes that match or exceed anything experienced in the present day. That so many people are unaware of this fact shows that collective memories of extreme weather are short-lived.

Heatwaves

Heatwaves of the last few decades pale in comparison to those of the 1930s – a period whose importance is frequently downplayed by the media and environmental activists. The evidence shows that the record heat of that time was not confined to the US ‘Dust Bowl’, but extended throughout much of North America, as well as to other countries, such as France, India and Australia. US heatwaves during July 2023, falsely trumpeted by the mainstream media as the hottest month in history, failed to exceed the scorching heat of 1934.

Heatwaves lasting a week or longer in the 1930s were not confined to North America; the Southern Hemisphere baked too. Adelaide, on Australia’s south coast, experienced a heatwave at least 11 days long in 1930, and Perth on the west coast saw a 10-day spell in 1933.  In August 1930, Australian and New Zealand (and presumably French) newspapers recounted a French heatwave that month, in which the temperature soared to a staggering 50°C (122°F) in the Loire valley – besting a purported record of 46°C (115°F) set in southern France in 2019. Many more examples exist of the exceptionally hot 1930s all over the globe. Even with modern global warming, there’s nothing unprecedented about current heatwaves, either in frequency or magnitude.

Floods

Major floods today are no more common nor deadly or disruptive than any of the thousands of floods in the past, despite heavier precipitation in a warming world (which has increased flash flooding in some regions).  Many of the world’s countries regularly experience major floods, especially China, India and Pakistan. A significant 1931 flood in China covered a far greater area and affected many more people than the devastating 2022 floods in Pakistan.

The Pakistan floods of 2022 were the nation’s sixth since 1950 to kill over 1,000 people, although the death toll from the 2022 floods was a comparable 1,739. Major floods which killed as many as 3,100 people afflicted the country in 1950, 1955, 1956, 1957, 1959, throughout the 1970s and in more recent years.

Monsoonal rains in 1950 led to flooding that killed an estimated 2,900 people across the country and caused the Ravi River in northeastern Pakistan to burst its banks; 10,000 villages were decimated and 900,000 people made homeless.  In 1973, one of Pakistan’s worst-ever floods followed intense rainfall of 325 mm (13 inches) in Punjab (which means ‘Five Rivers’) province, affecting more than 4.8 million people out of a total population of about 65 million.

Droughts

Severe droughts have been a continuing feature of the Earth’s climate for millennia, despite the brouhaha in the mainstream media over the extended drought in Europe during the summer of 2022. Not only was the European drought not unprecedented, but there have been numerous longer and drier droughts throughout history, including during the past century.

As an illustration that the 1930s and 1950s were not the only decades over the past century in which the US experienced significant droughts, Figure 14 depicts observational data showing the area of the contiguous US in drought from 1895 up until 2015. As can be seen, the long-term pattern in the US is featureless, despite global warming. Reconstructions of ancient droughts using tree rings or pollen as proxies reveal that historical droughts were even longer and more severe than those described here, many lasting for decades – so-called ‘megadroughts.’

Hurricanes

Hurricanes overall actually show a decreasing trend around the globe, and the frequency of their landfalling has not changed for at least 50 years. The deadliest US hurricane in recorded history, which killed an estimated 8–12,000 people, struck Galveston, Texas in 1900. As a comparison, the death toll of 2022’s Category 5 Hurricane Ian, which ldeluged much of Florida with a storm surge as high as Galveston’s, was just 156.

Hurricanes have been a fact of life for Americans in and around the Gulf of Mexico since Galveston and before. The death toll has fallen over time, with improvements in planning and engineering to safeguard structures, and the development of early warning systems to allow evacuation of threatened communities. Nevertheless, the frequency of North Atlantic hurricanes has been essentially unchanged since 1851, as shown in Figure 17. The apparent heightened hurricane activity over the last 20 years, particularly in 2005 and 2020, simply reflects improvements in observational capabilities since 1970, and is unlikely to be a true climate trend, say a team of hurricane experts. The incidence of major North Atlantic hurricanes in recent decades is no higher than that in the 1950s and 1960s, when the Earth was actually cooling, unlike today.

These are just a handful of hurricanes from our past, all as massive and deadly as Category 5 Hurricane Ian, which in 2022 deluged Florida with a storm surge as high as Galveston’s and rainfall up to 685 mm (27 inches); 156 were killed. Hurricanes are not on the rise today

Tornadoes

Likewise, there is no evidence that climate change is causing tornadoes to become more frequent and stronger. The annual number of strong (EF3 or greater) US tornadoes has in fact declined dramatically over the last 72 years, and there are ample examples of past tornadoes just as or more violent and deadly than today’s.

After a flurry of tornadoes swarmed the central US in March 2023, the media quickly fell into the trap of linking the surge to climate change, as often occurs with other forms of extreme weather. But there is no evidence that climate change is causing tornadoes to become more frequent and  stronger, any more than hurricanes are increasing in strength and number.

Wildfires

Wildfires are not increasing either. On the contrary, the area burned annually is diminishing in most countries. The total number of US fires and the area burned in 2022 were both 20% less than in 2007; data before 1983 that mysteriously disappeared recently from a government website shows an even larger historical decline. And, in  spite of popular belief, ignition of wildfires by arson plays a larger role than sustained high temperatures and wind.

Smoke that wafted over the US from extensive Canadian wildfires in 2023 has given credence to the mistaken belief that wildfires are intensifying because of climate change. However, just as with all the other examples of extreme weather, there is no scientific evidence that wildfires today are any more frequent or severe than anything experienced in the past. Although they can be exacerbated by weather extremes, such as heatwaves and droughts, we’ve already seen that those are not on the rise either.

In addition to examples of past weather extremes from newspaper archives, the report concludes with a short section on documented extreme weather events dating back centuries and even millennia.

Conclusion

The perception that extreme weather is increasing in frequency and severity is primarily a consequence of modern technology – the Internet and smart phones – which have revolutionised communication and made us much more aware of such disasters than we were 50 or 100 years ago. The misperception has only been amplified by the mainstream media, eager to promote the latest climate scare. And as psychologists know, constant repetition of a false belief can, over time, create the illusion of truth. But history tells a different story.

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