Flagstaff, AZ – Earth Notes: Forests and Carbon Dioxide
People have long looked to forests as our allies in the effort against climate change. Trees and other plants live by absorbing carbon dioxide, the greenhouse gas that's produced by the burning of fossil fuels. If more trees grow in more forests, then, they absorb more carbon, right?
They do but only up to a point. That's because most forests burn at some time. When they do, they release much of that trapped carbon back into the atmosphere.
Flagstaff, AZ – Almost three years after Arizona Public Service decommissioned the Childs and Irving power plants on Fossil Creek, a restoration success story has blossomed.
Fossil Creek starts from springs below the Mogollon Rim in central Arizona. It's one of just a few streams in the Southwest with the chemistry to produce travertine, which can form beige dams and pale blue pools that look like paradise. But its waters had been diverted for hydroelectricity for nearly a century.
Flagstaff, AZ – Many land managers are combating unwanted invasive species. On the Colorado Plateau, they decided to fight one of them by introducing another new species.
The unwanted plant, in this case, is tamarisk, the thirsty plant that crowds out willows and cottonwoods along southwestern watercourses. Entomologists went to its native land - China - to find a bug that eats these brushy shrubs.
Phoenix, AZ – Host Intro: Governor Janet Napolitano released her plan Thursday to balance this year's state budget. But Arizona Public Radio's Howard Fischer reports that key Republican legislators say there's less there than meets the eye.
Phoenix, AZ – Attorney General Terry Goddard filed legal papers today to intervene in California's challenge to the denial by the Environmental Protection Agency of its authority to regulate greenhouse gases. Arizona Public Radio's Howard Fischer explains why.