https://phys.org/news/2018-05-dusty-rainfall-reveal-earth-long-term.html

"Here's where we turn Milankovitch on its head," said first author J. Warren Beck, a UA research scientist in physics and in geosciences. "We suggest that, through the monsoons, low-latitude climate may have as much effect on high-latitude climate as the reverse."

During the northern summer, the subtropics and tropics north of the equator warm and the tropics and subtropics south of the equator cool.