“Analysis of leaves indicated several warming periods during the period.”
Gee...YA THINK???
It’s interesting that they don’t state WHY the Earth was in a “warming period” or “warming periods”...
In fact, of the 10 “related articles” I scanned, NONE of them used the words “cold” or “freeze” at ALL.
Why do they avoid discussing the deep FREEZE which is well established to have occurred after the Chicxulub impact?
The million dollar question is how long the planet was in a deep freeze; they don’t know, they just “theorize” since none of their computer models can predict modern climate...let alone recreate historical or ancient climate.
From one of the ‘related articles’:
“The K-Pg extinction wiped out around 60 percent of the marine species around Antarctica, and 75 percent of species around the world. Victims of the extinction included the dinosaurs and the ammonites. It was caused by the impact of a 10 km asteroid on the Yucatán Peninsula, Mexico, and occurred during a time period when the Earth was experiencing environmental instability from a major volcanic episode. Rapid climate change, global darkness, and the collapse of food chains affected life all over the globe.”
“Global darkness” was the only reference I found.
Why? (rhetorical)
Let alone the fact that currently it happens every 124k, and it happened at closer intervals the further back you go in the timeline.