[Fraxinus]

According to their scenario, a comet or large meteoroid generated a shock wave and threw massive amounts of debris, heat and gas into the atmosphere. This set off wildfires that raced across grasslands in southern North America, depriving the mammoths and other grazing animals of food.

Question - what recorded blast started wildfires? Every high temperature blast, that I have seen record of, cooked (sometimes to charcoal) things exposed to them, yet I see no references to fire resulting from them.

There have been a large number of volcanoes that have erupted in recorded history, yet it has only been lava flows that I have heard of starting fires. I believe it was incendiaries, not high explosives that started the firestorms that immolated cities in WWII.

[blam]

"Question - what recorded blast started wildfires?"

Tunguska.

[SunkenCiv]

Question - what recorded blast started wildfires? Every high temperature blast, that I have seen record of, cooked (sometimes to charcoal) things exposed to them, yet I see no references to fire resulting from them.

:') The flash from a nuke starts fires; such large impacts release similar amounts of energy, and will indeed start fires. Also, the ejecta from the crater are hot, and where they land they can start fires. Massive fires resulted from the Chicxulub impact at the K-T boundary.