All crops require nitrogen (N) for the production of a photosynthetically active canopy, whose functionality will strongly influence yield.
The economic crises seems blinding the governments and major economic actors toward environmental troubles.
This paper describes the methodology and data used to determine greenhouse gas (GHG) emissions attributable to ten cities or city-regions: Los Angeles County, Denver City and County, Greater Toront
Urban forests are integral components of urban ecosystems, which could generate significant ecosystem services, such as offsetting carbon emission, removing air pollutants, regulating the microclim