WASHINGTON, May 8 (UPI) -- America's urban forests store some 700 million tons of carbon, an environmental benefit worth an estimated $50 billion, a U.S. Forest Service study indicates.
Annual net carbon uptake by urban trees in places like New York City's Central Park and Golden Gate Park in San Francisco is estimated at 21 million tons and $1.5 billion in economic benefit, researcher Dave Nowak reported in the journal Environmental Pollution.