U.S. Forest Service researchers have published compelling evidence* of urban trees’ immense carbon storage capacity. Along with the other many things they do to improve the environment, trees absorb carbon dioxide emissions from a multitude of pollution sources in our cities. “Thus,” the researchers conclude, “urban trees influence local climate, carbon cycles, energy use, and climate change.”
National Arbor Day is April 26. We join our friends at Alliance for Community Trees in the firm belief that reducing atmospheric CO2 is one of the most important functions of the urban forest—and that people can play a big role.… Read more >>
The USDA Economic Research Service publishes the Food Environment Atlas to document, county by county throughout the United States, the percentage of households with limited access to grocery stores—and therefore to adequate nutrition. The interactive map aims to provide a spatial overview of communities’ abilities to access healthy food, but, so far, it doesn’t allow users to drill down to the level of neighborhoods.
In Los Angeles County, known “food deserts” include areas of South L.A. and the Northeast San Fernando Valley.… Read more >>
You won’t see it if you’re not looking for it, but you’ll know it was there. No bigger than a baby’s fingernail, the gold-spotted oak borer (GSOB) can devastate a 300-year-old oak tree that has withstood storms and quakes and even the quick and astounding rise of urban pollution in the 20th century. But if individual trees were all that was at stake, the oak borer wouldn’t pose such a threat. The truth is, this invasive pest could wipe out every native oak in California.… Read more >>