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Coastal erosion (EU) and fragile ecosystems in the Mediterranean Coastal erosion (EU) and fragile ecosystems in the Mediterranean
Among the many impacts erosion has on coastal ecosystems are the destruction of soil surface layers, leading to groundwater pollution and to reduction of water resources; degradation of dunes, leading to desertification; reduction of biological diversity; adverse effects on beach dynamics; reduction of sedimentary resources; and disappearance of the sandy littoral lanes that protect agricultural land from the intrusion of seawater, resulting in ...
19 Nov 2013 - by GRID-Arendal
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Ratio of protected areas in the Balkans Ratio of protected areas in the Balkans
The Balkans boast an exceptional wealth of biodiversity of flora and fauna. The main threat to species is increasing anthropogenic pressures such as hunting, farming and the collection of medicinal plants. Natural habitats are threatened by unsustainable economic activities in agriculture, illegal logging of forestry, illegal building and serious pollution. This poses several environmental problems such as erosion, a concern for most of the count...
30 Nov 2007 - by Philippe Rekacewicz, Stephane Kluser, Matthias Beilstein, Ieva Rucevska, Cecile Marin, Otto Simonett
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Exports of pharmaceutical plants from Central Europe compared to gross national income (GNI) per capita Exports of pharmaceutical plants from Central Europe compared to gross national income (GNI) per capita
The Balkans are one of the most competitive sources on the world market. However, stocks of many wild species have recently declined. Some species are now rare or endangered due to the loss of their natural habitat, excessive picking, soil erosion and other factors.
30 Nov 2007 - by Philippe Rekacewicz, Stephane Kluser, Matthias Beilstein, Ieva Rucevska, Cecile Marin, Otto Simonett
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Mining waste rock Mining waste rock
Regardless of the type of raw material, its extraction always comes with an environmental cost. Most mining leaves a lasting and damaging environmental footprint. For example, during the extraction of common metals like copper, lead or zinc from the earth both metal-bearing rock, called ore, and “overburden”, the dirt and rock that covers the ore are removed. At a typical copper mine around 125 tonnes of ore are excavated to produce just one ton...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Global sediment loads Global sediment loads
Asia exhibits the largest runoff volumes and, therefore, the highest levels of sediment discharge. This graphic shows the amounts of suspended sediments discharged, in millions of tonnes per year, in the major regions of the world. The levels of suspended sediments are increased by soil erosion and land degradation, and may affect aquatic ecosystems negatively.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Coastlines under threat Coastlines under threat
Out of the coastlines of the world, the coasts in Europe, Asia and Africa are of highest concern, and where extra care needs to be taken to ensure that measures are taken to protect the coasts in all aspects (erosion, biodiversity, buffering capacity etc). The graphic shows the ratio of coastlines around the world that are facing moderate or significant threats.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Moldova, topographic map Moldova, topographic map
Moldova is located in Eastern Europe, northeast of Romania, comprising of 33,843 sq km. It has a population of 4,455,421 (2005). Major environmental concerns are: heavy use of agricultural chemicals, including banned pesticides such as DDT, has contaminated soil and groundwater; extensive soil erosion from poor farming methods.
04 Oct 2005 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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Romania, topographic map Romania, topographic map
Romania is located in Southeastern Europe, bordering the Black Sea, between Bulgaria and Ukraine, comprising of 237,500 sq km. It has a population of 22,329,977 (2005). Major environmental concerns are: soil erosion and degradation; water pollution; air pollution in south from industrial effluents; contamination of Danube delta wetlands.
04 Oct 2005 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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Change in permafrost temperature in Fairbanks (Alaska) Change in permafrost temperature in Fairbanks (Alaska)
With a doubling of atmospheric CO2, it is likely that there will be increases in the thickness of the active layer permafrost and the disappearance of most of the ice-rich discontinous permafrost over a century-long time span. This figure provides a good example of changes already observed in Alaska. Widespread loss of discontinous permafrost will trigger erosion or subsidence of ice-rich landscapes, change hydrologic processes, and release CO2 ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Potential impact of sea level rise: Nile Delta Potential impact of sea level rise: Nile Delta
Rising sea level would destroy weak parts of the sand belt, which is essential for the protection of lagoons and the low-lying reclaimed lands in the Nile delta of Egypt (Mediterranean Sea). The impacts would be very serious: One third of Egypt's fish catches are made in the lagoons. Sea level rise would change the water quality and affect most fresh water fish. Valuable agricultural land would be inundated.
17 May 2005 - by Otto Simonett, UNEP/GRID-Arendal
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Coastal issues in the islands of Comoros and Mayotte Coastal issues in the islands of Comoros and Mayotte
With poverty and high population density this group of volcanic islands between Eastern Africa and Madagascar faces challenges in the management of the coastal environment. The islands are fringed by magnificent coral reefs, and the waters houses the rare coelacanth fish. Among the responses there have been initiatives to encourage ecotourism and the support in establishing the 400 km2 Mohéli Marine Park.
23 Feb 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Adult female literacy and land degradation in West Africa Adult female literacy and land degradation in West Africa
This map shows the possible spatial relation between the types of level of land degradation and adult female literacy. In West Africa there are a higher percentage of adult female illiteracy around areas that have higher levels of land degradation. Though in some areas this is not the case.
04 Oct 2005 - by Emmanuelle Bournay, Philippe Rekacewicz, UNEP/GRID-Arendal
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Barren Lands Barren Lands
Deforestation is well known for aggravating erosion. Bare soil has no protection against heavy rain, washing away immediately. On hillsides, it readily turns into mudslides leaving people very little time to seek refuge and cutting deep ravines into the earth. And where deforested land was turned into cultivated fields, the soil is likely to be overused and exploited through intensive use of fertiliser.
01 Feb 2006 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Hazardous industrial waste in Kadamjai Hazardous industrial waste in Kadamjai
The Kadamjai antimony plant in southern Kyrgyzstan stands close to the Uzbek border and the town of the same name. The plant annually consumes 20 000 tones of ore. Ore waste dumps are exposed to erosion by rain and wind – resulting in contamination of soil and water resources by pollutants.
16 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Pig farming in the Caucasus ecoregion Pig farming in the Caucasus ecoregion
Over the recent number of years, as the economy came to a standstill, individual farms have replaced collective farming and subsistence agriculture and livestock breeding (cattle, sheep and goat) have became common. Along with the increase in farming, more and more land has been used as pasture land. Despite their low productivity, high Mountain areas are increasingly used as pasture grounds for sheep - leading to soil erosion and evoking avalanc...
29 Jan 2008 - by Manana Kurtubadze
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Sheep and goats in the Caucasus ecoregion Sheep and goats in the Caucasus ecoregion
Over the recent number of years, as the economy came to a standstill, individual farms have replaced collective farming and subsistence agriculture and livestock breeding (cattle, sheep and goat) have became common. Along with the increase in farming, more and more land has been used as pasture land. Despite their low productivity, high Mountain areas are increasingly used as pasture grounds for sheep - leading to soil erosion and evoking avalanc...
29 Jan 2008 - by Manana Kurtubadze
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Pasture land in the Caucausus ecoregion Pasture land in the Caucausus ecoregion
Overgrazing and uncontrolled livestock grazing threatens steppe, subalpine and alpine ecosystems. A third of pasturelands in the region are subject to erosion. Sheep grazing in the winter ranges and the steppes and semi-deserts of the eastern Caucasus has nearly tripled in the past decade. Intensive grazing has resulted in reduced species diversity and habitat degradation. Secondary plant communities now occupy 80 percent of grasslands in the sub...
29 Jan 2008 - by WWF-Caucasus, design Manana Kurtubadze
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Cattle in the Caucasus ecoregion Cattle in the Caucasus ecoregion
Over the recent number of years, as the economy came to a standstill, individual farms have replaced collective farming and subsistence agriculture and livestock breeding (cattle, sheep and goat) have became common. Along with the increase in farming, more and more land has been used as pasture land. Despite their low productivity, high Mountain areas are increasingly used as pasture grounds for sheep - leading to soil erosion and evoking avalanc...
29 Jan 2008 - by Manana Kurtubadze
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Projected agriculture in 2080 due to climate change Projected agriculture in 2080 due to climate change
With our climate changes, we have to adapt our ways to a new environment – in most cases warmer and possibly wetter and drier. Projections on the climate in the future provide some guidance for us, but how can we create models for how the human society reacts? This map presents a rough idea of changes in agricultural output from increased temperatures, precipitation differences and also from carbon fertilization for plants. Projecting climate is ...
12 May 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Trends in productivity 1981-2003 (greening and land degradation) Trends in productivity 1981-2003 (greening and land degradation)
Unsustainable practices in irrigation and production may lead to increased salinization of soil, nutrient depletion and erosion. An estimated 950 million ha of salt-affected lands occur in arid and semi-arid regions, nearly 33% of the potentially arable land area of the world. Globally, some 20% of irrigated land (450,000 km2) is salt-affected, with 2,500–5,000 km2 of lost production every year as a result of salinity (UNEP, 2008).
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
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