Sea Ice (image) The Earth Institute at Columbia University Share Print E-Mail Caption Sea ice in the North Atlantic may have reorganized Earth's winds, spreading warmth from the northern hemisphere to south at the end of the last ice age. Credit NASA. Usage Restrictions please credit NASA. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.