How exactly did one big rock from space kill dinosaurs on the other side of the planet?…

How exactly did one big rock from space kill dinosaurs on the other side of the planet?  Here's an idea:

A paper in the Journal of Geophysical Research reviews the evidence for what its authors consider the most plausible model for global mayhem caused by the impact: its debris lit all the world's forests on fire at once.

Fire, fire, fire!

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Dinosaur-killing impact set the world on fire
Researchers argue forcefully that the ensuing heat set off global forest fires.

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  1. A weak hypothesis.  A more plausible scenario (than the global wildfire) is described here:

    – Robertson DS et al. Survival in the first hours of the Cenozoic. Geological Society of America Bulletin (2004) vol. 116 (5-6) pp. 760-768 ugcs.caltech.edu/~presto/cenozoic.pdf 

    BTW, two of the authors are the same.

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