The Northern California coast is home to giant redwoods-- the tallest trees in the world. The towering evergreens depend on the region's foggy climate, especially during the hot summer months. When rainfall is insufficient to hydrate the trees from the roots, the trees quench themselves by drawing moisture into their leaves from the fog.

Researchers at the University of California-Berkeley recently analyzed the frequency of coastal fog over the past hundred years. They discovered many fluctuations in fog and an overall decline. Scientists are unsure of what has caused these changes. The team's ongoing research will study how the redwoods will likely respond to variations in the climate they rely on.