Topographical map of the world (IMAGE) University of Chicago Caption Topographical map of the world, with higher mountain ranges in dark brown and lower areas in green. The Northern Hemisphere has more land mass and higher mountains than the Southern Hemisphere, which contributes in part to fewer storms, according to a new study. Credit NASA Jet Propulsion Laboratory Usage Restrictions Proper Credit Attribution License Licensed content 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.