Which of the following is not a concern that scientists have about oceans getting warmer? warmer oceans cannot store as much carbon dioxide, which is a greenhouse gas. this means carbon dioxide in the atmosphere will rise and average global temperatures could also rise. warmer oceans can lead to ocean acidification which is harmful to coral reef populations. warmer oceans store much more carbon dioxide, which is a greenhouse gas. this means carbon dioxide in the atmosphere will fall and average global temperatures could also fall. warmer ocean temperatures can lead to more severe hurricanes