Climate realism at New Scientist: "the annual average count of all but the weakest tornadoes has not changed for more than half a century"

Global warming heats up tornado debate - opinion - 07 May 2012 - New Scientist

Three tornadoes that killed at least 90 people in 1953 led to speculation that atmospheric tests of nuclear weapons caused them.

But the speculation has been one-sided, with talk of human influences on tornadoes following disasters, but little about whether human influences have acted as a brake on their numbers after anomalously low activity.

...As a result, there is not much we can say about long-term patterns, except that the annual average count of all but the weakest tornadoes has not changed for more than half a century. Also, the timing of the tornado season hasn't changed...

Equally clear is that those who continue to talk in certain terms of a future blighted by more severe tornadoes as a result of climate change are failing to heed all the available evidence.