BBC: Getting ships to generate smaller bubbles as they sail across the oceans could counteract the impact of climate change, a study suggests.
Scientists from University of Leeds, UK, say this would create a brighter wake behind a vessel and reflect more sunlight back into space.
However, it could also increase rainfall in some areas.
The findings were presented at the American Geophysical Union Fall Meeting in San Francisco.
This is the latest idea from the hotly debated field of geoengineering...