The plants in the salt marsh grow fast, sucking a lot of carbon dioxide out of the air and some of that carbon gets trapped as plants die and new ones grow over them. It makes the wetlands a carbon sink, as some researchers call it.
Even longtime Californians might be surprised to learn of modern-day glaciers in the state. But the fact is remnants of the Lyell Glacier, in Yosemite National Park, are about to disappear.
