SCIENCE: More work needed to understand aerosols' effects on clouds and climate, scientists say Stephanie Paige Ogburn, E&E reporter Published: Friday, January 24, 2014 In the world of climate change research, one particular issue has been challenging scientists for years: clouds. Please subscribe to ClimateWire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.