Gli alberi urbani di grandi dimensioni fungono da eccellente filtro per gli inquinanti urbani e il particolato fine. Un singolo albero può assorbire fino a 150 kg di CO2 all’anno e sequestrare carbonio dall’atmosfera, contribuendo così a mitigare il cambiamento climatico. Gli alberi forniscono habitat, cibo e protezione per piante ed animali, aumentando così la biodiversità urbana.
Crown diameter and tree density were measured in 52 communities in the Sudan-Sahel using satellite imagery to determine the relationships between rainfall and distance from community center to crown size diameter and tree density. As distance from the community center increased, tree density and crown diameter decreased.
Cities and the people who live in them
account for more than 80 percent of the world's total
greenhouse gas emissions. In addition, more than 80 percent
of the overall annual global costs of adaptation to climate
change are estimated to be borne by urban areas. This issues
Woodfuels (firewood and charcoal) are
the dominant energy source and the leading forest product
for most developing countries. Representing 60 to 80 percent
of total wood consumption in these nations, woodfuels often
account for 50 to 90 percent of all energy used. Although
The planning and management of urban forest has become increasingly important as a focus of urban environmental management. The objectives of this study were to analyze the landuse/land cover and to map functional zones of the urban forest in the upper catchment area of Addis Ababa.
Urban agriculture contributes to local
economic development, poverty alleviation, the social
inclusion of the urban poor and women, as well as to the
greening of the city and the productive reuse of urban
wastes. Urban agriculture encompasses a wide variety of
This Policy Note discusses the status of
Forestry in the Middle East and North Africa Region (MNA) of
the Bank. The Policy Note is a product of the FAO Investment
Center in Rome, the International Food Policy Research
Institute (IFPRI) and the Bank. Experience in natural
After five consecutive years of robust growth, the total value of the global carbon market stalled at $142 billion. Suffering from the lack of post-2012 regulatory clarity, the value of the primary Clean Development Mechanism (CDM) market fell by double-digits for the third year in a row, ending lower than it was in 2005, the first year of the Kyoto protocol.
Urban sources of greenhouse gas (GHG)
emissions in Brazilian cities are growing. At the national
level, the dominance of greenhouse gas emissions from
deforestation in Brazil masks the fact that emissions from
other sectors, like Energy, Transport and Waste, are growing
Governance of Tenure Voluntary Guidelines video The Voluntary Guidelines on the Governance of Tenure of Land, Fisheries and Forests in the context of National Food Security Directives volontaires sur la gouvernance foncière Les Directives volontaires pour une gouvernance responsable des régimes fonciers applicables aux terres, aux pêches et aux forêts dans le contexte de la sécurité alimentaire