Does dark matter cause mass extinctions and geologic upheavals?

[C C]

http://www.sciencedaily.com/releases/201...085827.htm

EXCERPT: New research concludes that Earth's infrequent but predictable path around and through our Galaxy's disc may have a direct and significant effect on geological and biological phenomena occurring on Earth. Scientists conclude that movement through dark matter may perturb the orbits of comets and lead to additional heating in the Earth's core, both of which could be connected with mass extinction events...

[Magical Realist]

[Image: b6aec91c-98aa-467c-b20d-a6ad4d504cdd-620x372.jpeg]

[Yazata]

http://www.sciencedaily.com/releases/201...085827.htm

EXCERPT: New research concludes that Earth's infrequent but predictable path around and through our Galaxy's disc may have a direct and significant effect on geological and biological phenomena occurring on Earth. Scientists conclude that movement through dark matter may perturb the orbits of comets and lead to additional heating in the Earth's core, both of which could be connected with mass extinction events...

I was just reading about that yesterday, in the latest New Scientist. That story made the whole things sound extremely speculative at this point. I think that it's probably way to early to "conclude" much of anything. It's just a speculative hypothesis that probably merits further investigation.