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Wild food harvests in Alaska by area, 1990s Wild food harvests in Alaska by area, 1990s
The harvest of natural resources is a key feature of traditional lifestyles and economies throughout the Arctic, and a continuing reliance on it as a mainstay of indigenous existence in the north is evident. In Alaska, wild food harvests vary considerably by geographic area. The total harvest has been estimated at about 43.7 million pounds (approximately 19.8 million kg) of wild resources, an average of about 375 pounds (170 kg) per capita. This ...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
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Distribution and current trend of polar bear subpopulations throughout the circumpolar Arctic Distribution and current trend of polar bear subpopulations throughout the circumpolar Arctic
Polar bears occur in 19 relatively discrete subpopulations with an estimated worldwide abundance of 20,000– 25,000 animals. Our knowledge of the status and trend of each subpopulation varies due to availability, reliability, and age of data. Furthermore, for many subpopulations, there is limited or no data collected over a sufficient period of time to examine trends. Based on a 2009 review of the worldwide status of polar bears, one of 19 subpopu...
01 May 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Sturgeons distribution in the Black Sea Sturgeons distribution in the Black Sea
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were never not used in this form in the final report on the Black Sea, published in 2005.
07 Nov 2010 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Turbot distribution in the Black Sea Turbot distribution in the Black Sea
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were never not used in this form in the final report on the Black Sea, published in 2005.
07 Nov 2010 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Comb-jelly (Mnemiopsis leidyi) spreading through the Caspian Sea (invasive species) Comb-jelly (Mnemiopsis leidyi) spreading through the Caspian Sea (invasive species)
The comb jelly (Mnemiopsis leidyi) is well adapted to the habitat (salinity, temperature, and food range) and reproduces faster than endemic species. As it eats the same food as them, it has had a drastic effect on their numbers, upsetting the entire food chain. The jelly is an invasive species, brought from North America by ships.
21 May 2010 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Orangutan distribution on Borneo (Indonesia, Malaysia) Orangutan distribution on Borneo (Indonesia, Malaysia)
The distribution of Orangutan on Borneo is rapidly decreasing, as mankind is reducing the available habitat for the apes. The loss of forest, through logging, clearing and burning, means reduced opportunities for hiding and food collection. In addition, orangutans are hunted for food and to be held in captivity.
21 May 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Polar bear sub-populations and pollution Polar bear sub-populations and pollution
There are thought to be between 20,000 and 25,000 bears in the world, which occur in19 relatively discrete sub-populations, some of which are shared between nations. Topping the food chain in the Arctic, the polar bear is exposed to high levels of pollutants that are magnified with each step higher in the food web (a process known as biomagnification). Recent studies have suggested that the immune system may be weaker in polar bears with higher l...
13 Oct 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Deteriorated forest hotspots Deteriorated forest hotspots
Despite showing signs of slowing at the global level, the present pace of deforestation continues to be a source of serious concern for Latin America and the Caribbean. While the region’s forests represent one of the most important potential sources for mitigating greenhouse gas emissions, it equally accounted for approximately 70% of the world’s decrease in forests between 2005 and 2010 (FAO 2010). The global forest resource assessment (FRA) con...
22 Nov 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Climate change impacts that could affect attainment of the Millennium Development Goals Climate change impacts that could affect attainment of the Millennium Development Goals
Sustainability in the Latin American and Caribbean countries may be affected by climate change impacts. Costs associated with climate change can intensify budget constraints as countries attempt to reduce poverty and work towards meeting the Millennium Development Goals. Food security will be affected because of a decline in the productivity of staple grains, natural disasters and drought may reduce the time available for children’s education. It...
22 Nov 2010 - by Nieves López Izquierdo, Associate Consultant UNEP/GRID-Arendal
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Index of biodiversity potential in Central America 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 change. Variations in climate affect different species of flora and fauna differently, producing, in some cases, a disruption in food chains and/or in reproductive patterns. It is therefore necessary to reduce or control greenhouse g...
22 Nov 2010 - by Nieves López Izquierdo, Associate Consultant UNEP/GRID-Arendal
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PCBs in the blood of Arctic residents PCBs in the blood of Arctic residents
Many POPs (persistent organic pollutants) and heavy metals from emissions further south are accumulated in Arctic food chains and ultimately in indigenous peoples. While fear of these compounds sometimes has resulted in abandonment of traditional foods, this has also led to more unhealthy food habits acquired from non-indigenous peoples. Most indigenous peoples in smaller communities still supply a large share of their household foods from natura...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Coastal Arctic food web (drift ice) Coastal Arctic food web (drift ice)
The coastal Arctic food web is closely related to drift ice conditions and seasonal use of shorelines by both terrestrial and sea mammals. Numerous species depend upon each other and the transport of food to and from the marine areas to the coast and inland. Indigenous peoples use most of the food chain and traditionally use both environments for hunting, fishing and gathering.
17 May 2005 - by UNEP/GRID-Arendal
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Mercury levels in indigenous women Mercury levels in indigenous women
Many POPs (persistent organic pollutants) and heavy metals from emissions further south are accumulated in Arctic food chains and ultimately in indigenous peoples. While fear of these compounds sometimes has resulted in abandonment of traditional foods, this has also led to more unhealthy food habits acquired from non-indigenous peoples. Most indigenous peoples in smaller communities still supply a large share of their household foods from natura...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Pathways of contaminants to the Arctic Pathways of contaminants to the Arctic
Many POPs (persistent organic pollutants), heavy metals and other contaminants from emissions further south are accumulated in Arctic food chains and ultimately in indigenous peoples. This process is often referred to as long-range pollution or long-range transport of pollutants. While fear of these compounds sometimes has resulted in abandonment of traditional foods, this has also led to more unhealthy food habits acquired from non-indigenous pe...
17 May 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
3
Orangutan distribution on Borneo (Indonesia, Malaysia) Orangutan distribution on Borneo (Indonesia, Malaysia)
The distribution of Orangutan on Borneo is rapidly decreasing, as mankind is reducing the available habitat for the apes. The loss of forest, through logging, clearing and burning, means reduced opportunities for hiding and food collection. In addition, orangutans are hunted for food and to be held in captivity.
22 Jan 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Fishing yield Fishing yield
Three-quarters of the world’s fish stocks are currently exploited to the maximum extent, if not in excess (FAO, 2000). This exploitation has had the following impacts: - A growing variety of fishery products are being exploited. Commercial fishermen are targeting progressively smaller species at lower levels of the food chain because the main predator species are being depleted. - Most of the world’s main fishing areas are close to full exploit...
26 Jan 2009 - by Phillippe Rekacewicz, February 2006
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Freshwater use by sector at the beginning of the 2000s Freshwater use by sector at the beginning of the 2000s
The agricultural sector is by far the biggest user of freshwater. Analysis indicates that: - In the United States, agriculture accounts for some 49% of total freshwater use, with 80% of this volume being used for irrigation (Shiklomanov, 1999). - In Africa and Asia, an estimated 85-90% of all freshwater used is for agriculture (Shiklomanov, 1999). - According to estimates for the year 2000, agriculture accounted for 67% of the world’s total fr...
26 Jan 2009 - by Philippe Rekacewicz (Le Monde diplomatique)
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The disappearance of the Aral Sea The disappearance of the Aral Sea
The demise of the Aral Sea in central Asia was caused primarily by the diversion of the inflowing Amu Dar’ya and Syr Dar’ya rivers to provide irrigation water for local croplands. These diversions dramatically reduced the river inflows, causing the Aral Sea to shrink by more than 50%, to lose two-thirds of its volume, and to greatly increase its salinity. At the current rate of decline, the Aral Sea has the potential to disappear completely by 20...
26 Jan 2009 - by GRIDA
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Cereal productivity in sub-Saharan Africa under a projected Intergovernamental Panel on Climate Change (IPCC) scenario Cereal productivity in sub-Saharan Africa under a projected Intergovernamental Panel on Climate Change (IPCC) scenario
A majority of the population in sub-Saharan African lives in rural areas, where income and employment depend almost entirely on rain-fed agriculture. This population is today at high risk. Sub-Saharan Africa already has a highly variable and unpredictable climate and is acutely vulnerable to floods and droughts. A third of the people in the region live in drought-prone areas, and floods are a recurrent threat in several countries. With climate ch...
26 Jan 2009 - by Philippe Rekacewicz
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The Mekong River - survival for millions The Mekong River - survival for millions
The Mekong River - survival for millions Following the course of the Mekong River helps to understand the human/river hydrological interdependence. From its source on the Tibetan Plateau it drops 5,000 metres and flows across six countries before reaching its delta. More than a third of the population of Cambodia, Lao PDR, Thailand and Vietnam - some 60 million people - live in the Lower Mekong Basin, using the river for drinking water, food, ir...
26 Jan 2009 - by Philippe Rekacewicz
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