Comment What percentage... (Score 4, Informative) 114
Not saying I believe the magnitude of the effect, but from the article:
"""The team used a computer model to calculate what would happen if 32,000 large ships - the current estimate of large vessels on the high seas - produced tinier bubbles.
"If we were to successfully put these generators on to these ships, and the ships just went about their normal business, we did find there was potential to reduce the surface temperature by about 0.5C," Prof Forster said"""