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The Antarctic convergence
The Antarctic convergence represents an important climatic boundary between air and water masses, and is also an approximate boundary for the Southern Ocean, surrounding…
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Sehukhuneland household surveys
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Probability of gastroenteritis amongst bathers exposed to increasing faecal streptococci densities from samples taken at chest depth
The graphic shows the probability of gastroenteritis when bathing in water containing faecal contaminants. Gastroenteritis is the irritation and inflammation of the digestive tract.…
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The decrease of Arctic sea ice, minimum extent in 1982 and 2007, and climate projections
Satellite observations of the September extent of sea ice in the Arctic shows in 2007 shows a 23% decrease from the previous minimum, in…
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Harmful algal blooms in the West Central Atlantic, 1970-1996
The graphic shows the trend of the number of harmful algal blooms in the Western Atlantic from 1970 to 1996. The excess growth of…
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Atmospheric concentration of CO2, 1870-1990
Historically the developed countries of the world have emitted most of the anthropogenic greenhouse gases. The U.S. emits most in total, and is one…
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World consumption and prognoses of primary energy
Consumption of non-renewable resources have been increasing in most of the world except Eastern Europe and the Former Soviet Union. This graphic shows the…
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The Aarhus convention (2001)
The Aarhus Convention is a new kind of environmental agreement. It links environmental rights and human rights. It acknowledges that we owe an obligation…
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Acid rain in Europe
Acid rain become a major transboundary environmental issue in the late twentieth century. In Europe there were varying levels of the threat from acid…
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Arctic pelagic food web
The marine animal food chain is very complex and multilayered as are most food chains. This is a quick reference to represent the complete…
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Wilderness in Norway 1900-1992
This map shows changes in wilderness areas in Norway from 1900 to 1992, and the successive decrease when human activities have expanded. Wilderness is…
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Human Development Index for the World regions in 1994
The UNDP Human Development Index (HDI) is a comparative benchmark indicator of living standards and development, taking into account poverty, literacy, education, life expectancy,…