Scientific American note Scientific American note 20,000 years ago Hint, no they are not deglaciation Scientific American note a rise in atmospheric carbon dioxide Ice Age ended deglaciation deglaciation https://www.scientificamerican.com/a...-last-ice-age/ ice age What thawed the last ice age? until the end of the Last Glacial Maximum (LGM) Scientific American note Scientific American note about 10,000 years ago Hint, no they are not Hint, no they are not deglaciation deglaciation https://www.scientificamerican.com/a...-last-ice-age/