Posts Tagged ‘climate’
Urbanization, Export Crops Drive Deforestation
Posted in urban living
In Reversal, Land Is Cleared for Global Trade and Big Cities, Says Study
The drivers of tropical deforestation have shifted in the early 21st century to hinge on growth of cities and the globalized agricultural trade, a new large-scale study concludes.
The observations starkly reverse assumptions by some scientists that fast-growing urbanization and the efficiencies of global trade might eventually slow or reverse tropical deforestation. The study, which covers most of the world’s tropical land area, appears in this week’s early edition of the journal Nature Geoscience.
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Urban ‘green’ spaces may contribute to global warming
Posted in urban living
Turfgrass management can create more greenhouse gas than plants remove from atmosphere
Dispelling the notion that urban “green” spaces help counteract greenhouse gas emissions, new research has found – in Southern California at least that total emissions might be lower if lawns did not exist. milfs
Turfgrass lawns help remove carbon dioxide from the atmosphere through photosynthesis and store it as organic carbon in soil, making them important “carbon sinks.” However, greenhouse gas emissions from fertilizer production, mowing, leaf blowing and other lawn management practices are similar to or greater than the amount of carbon stored by ornamental grass in parks, a UC Irvine study shows.
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