Lawn Upload Grass Releases Surprising Amounts of CO2 Which emits more of the greenhouse gas carbon dioxide: a cornfield or a residential lawn? According to researchers at Elizabethtown College, in Pennsylvania, it’s the grass. David Bowne, an assistant professor of biology, published the study results in the Soil Science Society of America Journal.


After measuring carbon dioxide released from each setting, the scientists found that urban areas deemed heat islands may have a smaller overall impact than previously thought, compared with suburban developments. Previously, the heat island effect has been perceived as a phenomenon that occurs only in cities, where the mass of paved roads, dark roofs and buildings absorb and concentrate heat, making cities much warmer during hot days than other areas. Both carbon dioxide releases and soil temperature were measurably higher


in residential lawns than in croplands and higher temperatures are directly asso- ciated with carbon dioxide efflux. Bowne says, “As you increase temperature, you increase biological activity—be it microbial, plant, fungal or animal.” Increased activity leads to more respiration and increased carbon dioxide emissions.


Source: Tinyurl.com/LawnsVersusCorn


Imperiled Parks Laws Permit Oil and Gas Drilling in Iconic Public Lands


News that the U.S. Department of the Interior will allow drill- ing for oil and gas in a proposed wilderness area in southern Utah’s Desolation Canyon puts a spotlight on the practice. A report by the Center for American Progress reveals that 42 national parks are at risk, including 12 where oil and gas drilling is currently underway and 30 where it could be in the near future. Among the threatened wild places are iconic American national parklands,


including Grand Teton, in Wyoming, Mesa Verde, Great Sand Dunes and Dinosaur National Monument, in Colorado, Santa Monica Mountains, in California, Glen Canyon, in Arizona, Carlsbad Caverns and Chaco Canyon, in New Mexico, Ever- glades and Gulf Islands, in Florida, Arches and Canyonlands, in Utah, and Glacier, in Montana. The reality is that all public lands, including national parks and wildlife refuges, are potentially open to oil and gas leasing unless they are designated as “wilderness”, the highest form of land protection designated by the government.


Source: The Wilderness Society (Tinyurl.com/NationalParkDrilling)


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