… The future of San Francisco’s iconic fog has been debated in media stories during recent years, and some experts note a diminished cloud cover along the California coast that could lead to a warming trend. … While the scientific community endeavors to figure out the long-range impact of climate change on California’s coastal fog, there’s a strong consensus that diminished cloud cover would have a harmful effect. Species such as the widely admired coastal redwoods, which get up to 40% of their yearly water intake from fog, could be threatened if that resource dwindled. … But climate scientists are split over whether the increased heat will lead to less fog because the air over the ocean won’t be cold enough to condense, or whether stronger winds will atone for that factor.