The main effect of the Milankovitch cycles is to change the contrast between the seasons, not the amount of solar heat Earth receives.
22.
Milankovitch cycles dominate climate on the glacial interglacial timescale, but there exist variations in ice sheet extent that are not linked directly with insolation.
23.
MacDonald also published work on other aspects of climatology, hypothesizing the role of Milankovitch cycles and methane clathrates as drivers of natural climate changes.
24.
Hardie's work on carbonates advanced the understanding of climate and sea level change, and the role of Milankovitch cycles in carbonate deposition.
25.
The Milankovitch cycles, along with solar forcing, have been determined to drive periodic environmental change on a global scale, namely between glacial and interglacial environments.
26.
The Quaternary Period is typically defined by the cyclic growth and decay of continental ice sheets driven by Milankovitch cycles and the associated climate and environmental changes that occurred.
27.
Such changes associated with the redistribution of solar energy are considered a likely cause for the coming and going of recent ice ages ( see : Milankovitch cycles ).
28.
The ice age periodicity is 100, 000 years, not 10, 000 and is believed to be driven by Milankovitch cycles in the Earth's orbit.
29.
Some observations of varves ( layers seen in the mud covering the bottom of lakes ) matched the prediction of a Milankovitch cycle lasting about 21, 000 years.
30.
In 2006, the northern hemisphere summer was 4.66 days longer than winter, and spring was 2.9 days longer than fall due to the Milankovitch cycles.
