Lawns - long known to be the main culprit in urban water consumption, now can be blamed for another environmental woe - greenhouse gas producer in excess of whatever carbon it 'sinks'. The gas is nitrous oxide - 300 times more potent than CO2.
Grass, like most plants, has long been thought as instrumental to counteracting global warming by sequestering atmospheric carbon into the soil as well as converting carbon dioxide into oxygen. In this University of California at Irvine study, soon to be published in the journal Geophysical Research Letters, shows that the lawns cause far more emissions than they store in the soil.
"(G)reenhouse gas emissions from fertilizer production, mowing, leaf blowing and other lawn management practices are four times greater than the amount of carbon stored by ornamental grass in parks, a UC Irvine study shows. These emissions include nitrous oxide released from soil after fertilization. Nitrous oxide is a greenhouse gas that's 300 times more powerful than carbon dioxide."
Thanks to Bob Maginnis
FULL STORY: Urban 'green' spaces may contribute to global warming, UCI study finds
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Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
City of Albany
UCLA Lewis Center for Regional Policy Studies
Mpact (formerly Rail~Volution)
Chaddick Institute at DePaul University
City of Piedmont, CA
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research