sudden cold - excerpts
‘These cold intervals and others have all been linked to a reduction in solar output. However, some recent developments have revealed that the Sun's output does not vary to the extent believed a few short years ago. The 0.40% decrease attributed originally to the Sun was, it turns out, based upon observations of nearby sun-like stars and not our Sun at all. Obviously, this has major implications to the whole premise of solar variation as the cause for short-term climate shifts.’
“An astronomer by the name of John Lewis contends that impact events triggering global consequences, require a meteorite several hundred metres to one kilometre in width to inflict significant worldwide damage. Whether the impact inflicts this damage through the creation of a massive amount of dust, originating both from the comet itself and the land it strikes (assuming a land impact), or by a gigantic tsunami (ocean strike), the damage would be great. The amount of dust created even by a 100- to 200-megaton meteorite is sufficient to lift skyward an estimated one-third of a million tons per megaton of energy.”
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“The extinction at the close of the Last Ice Age referred to in the quotes above, has long aroused interest in many scientists. There is certainly no denying that huge die-offs of animals took place throughout many parts of the world. Nowhere were the die-offs so great as in the America's. Estimates as to the total number of large mammals that met their demise are impressive indeed, as 73% and 80% of all animals in North and South America respectively became extinct in the late Pleistocene.”
“Cosmic swarms likely contain mostly Tunguska-sized objects, perhaps numbering in the hundreds. Not large enough to reach the Earth’s surface, they airburst in the Earth’s protective atmosphere. This was the fate of the 1908 Tunguska object, as it was with another a little over 4,000 BP. These are but the smallest of objects likely to be present with cosmic swarms. Astronomers Victor Clube and Bill Napier envision perhaps half a dozen objects in the 200–300 metre (1,000 megatons) category, accompanied by perhaps one object of considerable size, something in the order of one-half kilometre across. The total energy delivered would be comparable to 10,000 megatons of energy, an amount capable of having world-wide effects. Cosmic swarms may take place over a few centuries followed by periods of relative calm, only to be replaced once again by another round of cosmic activity, perhaps as much as a thousand years later.”
