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Tag: Services

Forest vs. Agriculture – the case of the Mabira forest reserve, Uganda
The Mabira forest reserve, on the shores of Lake Victoria hosts valuable wildlife, serves as a timber resource, provides ecosystem services for the water balance and the rainforests represents a tourist destination. Foll...
12 May 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
World map of forest distribution (Natural resources - forests)
Approximately 240 million of the world's poor that live in forested areas of developing countries depend on forests for their livelihoods. Forest and its products provide cash income, jobs, and consumption goods for poor...
12 May 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Electrification and traditional fuels in Sub-Saharan Africa
The Southern African Development Community (SADC) consists of 15 countries, with 233 million inhabitants. Apart from Mauritius and the countries around South Africa in the Southern African Customs Union (SACU), the remai...
12 May 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Possible individual ranges of yield and cropland area losses by 2050
Figure 24: Possible individual ranges of yield and cropland area losses by 2050 with climate change (A2 scenario), non-food crops incl. biofuels (six OECD scenarios), land degradation (on yield and area, respectively, s...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Potential for cropland expansion
Current projections suggest that an additional 120 million ha – an area twice the size of France or one-third that of India – will be needed to support the traditional growth in food production by 2030, mainly in deve...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Projected land use changes
A central component in preventing loss of biodiversity and ecosystem services, such as provisioning of water, from expanding agricultural production is to limit the trade-off between economic growth and biodiversity b...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Index of biodiversity potential in Central America
Biodiversity is vitally important to human well-being as it provides ecosystem services on which humans depend. For many species that are sensitive to even small variations in climate, their primary threat is climate cha...
22 Nov 2010 - by Nieves López Izquierdo, Associate Consultant UNEP/GRID-Arendal
Expected impacts of climate change in 2050
It is expected that by 2050 there will be threats to ecosystem services in the Andes and Mexico, in the Central American and Caribbean sub-regions, and in southeastern Brazil, while there will be negative effects on fish...
22 Nov 2010 - by Nieves López Izquierdo, Associate Consultant UNEP/GRID-Arendal
Household income by source, Masvingo province, Zimbabwe
A study of households (rich and poor) in the Masvingo Province in southeastern Zimbabwe provides a good example of how agricultural income complements wild income and how it compares with other income sources such as wag...
11 Jul 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Sea level rise and assessment of the state of the marine environment
A significant sea level rise is one of the major anticipated consequences of climate change. This will cause some low-lying coastal areas to become completely submerged, while others will increasingly face short-lived hi...
01 Oct 2009 - by Philippe Rekacewicz
Benefits of marine and coastal ecosystems to human wellbeing
Besides the well-known economic value of fisheries, there are several other activities generating significant revenues in coastal and marine areas. Tourism has become one of the world’s fastest growing industries, provid...
26 Jan 2009 - by Phillippe Rekacewicz, February 2006
Public services provide cheaper water
By bringing water to people water resellers extend the coverage of piped water and provide a service with important benefits for households - but at a price. That price rises with distance from the utility, as defined by...
26 Jan 2009 - by GRID-Arendal
Human actions leading to coastal degradation
Physical alteration and the destruction of habitats are now considered one of the most significant threats to coastal areas. Half of the world’s wetlands, and even more of its mangrove forests, have been lost over the pa...
26 Jan 2009 - by Philippe Rekacewicz (Le Monde diplomatique), February 2006
Industrial areas and seasonal zones of oxygen depleted waters
This graphic illustrates the strong link between areas with high densities of industrial activity and zones of seasonally oxygen-depleted waters. There is a strong link between areas with high densities of industrial ac...
26 Jan 2009 - by Phillipe Rekacewicz, (Le Monde diplomatique) February 2008
Fourchettes individuelles possibles pour les pertes de rendement et de superficie cultivable à l'horizon 2050
variations du climat (scénario A2), cultures non alimentaires, y compris les combustibles (six scénarios OCDE), effets de la dégradation des sols (sur le rendement et la superficie, respectivement; voir le texte correspo...
08 Jun 2009 - by GRID-Arendal
Species Turnover
Change in the initial species richness in 2005 relative to 2001-2005 average (high-range climate change scenario). Studies predict species invasion will be profound in the Arctic and Southern Oceans. Among others these c...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Slum population in urban Africa
One of the major challenges of urbanisation in Africa is the rapid expansion of areas of informal settlements. These slum areas tend to lack infrastructure such as pipe-borne water and sewerage, and services such as garb...
18 Mar 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Historical population trend, Grahamstown 1840-1980
While the white population were the majority in the early period of Grahamstown, South Africa, they were outnumbered around 1920. Historically, the non-white population did not pay for water and sanitation services, and ...
18 Mar 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
South Africa biomes
South Africa is blessed with a rich abundance of biodiversity and a wide range of ecosystems and biomes. Among them are the wetland ecosystems, which occupy approximately seven per cent of South Africa’s total land area....
21 Jun 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Ecosystem services value for the Leuser Ecosystem
Values for the various non-carbon ecosystem services (water, regulation of floods and landslides, fisheries, prevention and limitation of fires, agriculture, tourism, and non-timber forest products (NTFP) and biodiversit...
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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