![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage01.jpg) | Glacier in East Coast Mountains of Baffin Island, Nunavut, Canada. |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage02.jpg) | Northern hemisphere glacial and estimated sea ice coverage. |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage03.jpg) | Southern hemisphere glacial and estimated sea ice coverage |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage04.jpg) | Erratic, Baffin Island, Nunavut, Canada. |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage05.jpg) | Fjord, Baffin East Coast Mountains, Nunavut, Canada. |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage06.jpg) | Striations on rock, Baffin Island, Nunavut, Canada. |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage07.jpg) | Photograph of James Croll from J. C. Irons (1896) |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage08.gif) | Graphic of Earth's orbit adapted from Pisias and Imbrie [1986/1987]. |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage09.gif) | Precession of Earth's orbit adapted from Pisias and Imbrie [1986/1987] |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage10.gif) | Earth's eccentricity adapted from Pisias and Imbrie [1986/1987] |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage11.gif) | Portrait of Milutin Milankovitch by Paja Jovanovic, 1943, courtesy of Vasko Milankovitch |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage12.gif) | Earth's axial tilt, adapted from Pisias and Imbrie [1986/1987] |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage13.gif) | Earth's insolation using data from Berger [1978] |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage14.jpg) | A 10m-piston core being raised to the deck of the Hudson. |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage15.jpg) | Marine sediment samples collected with a multicorer. |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage16.jpg) | Photo of Helenina anderseni |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage17.jpg) | Baoji section of the Loess Plateau, China |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage18.gif) | Climate forcing on glacial-interglacial timescales |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage19.gif) | Insolation and global ice volume fluctuations. |
![](https://webarchive.library.unt.edu/eot2008/20081025044252im_/http://www.ncdc.noaa.gov/paleo/slides/images/thumb/iceage20.jpg) | Remnant of the Ice Age |