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Climate change poses a threat to wildlife because as climatic conditions change, many species may be unable to tolerate the changes. This graphic shows the numbers of mammals, birds, reptiles, [..]
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Forty percent of Africa's population lives in arid, semi-arid, and dry subhumid areas. Climate change may lead to an increase in arid zones that are susceptible to drought. This graphic shows the [..]
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Africa is very vulnerable to climate change given its low capacity to respond and adapt, but Africa emits relatively low amounts of greenhouse gases in comparison to other regions. This graphic shows [..]
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Predictions of the effects of climate change on natural ecosystems in South Africa, over the medium to long term, have included reduced spatial extent of the Grassland biome (Ellery et al. 1991) and [..]
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Zimbabwe is experiencing more hot days and fewer cold days, and the amount of precipitation it receives is deviating from the mean more frequently. This resource includes two graphics. The first shows [..]
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Multiple stresses make most of Africa highly vulnerable to environmental changes, and climate change is likely to increase this vulnerability. This graphic shows which of the regions of Africa (North [..]
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Natural forcing (solar variation and volcanic activity) alone cannot explain the recent global temperature increase. This graphic shows the temperature anomalies (in degrees Celsius) that were [..]
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The average annual rate of change in total forest area from 1990 to 2000 for the whole of Africa was estimated to be -0.74 %, equivalent to losing more than 5 million ha of forest a year, an area [..]
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El Niño describes 'the warm phase of a naturally occurring sea surface temperature oscillation in the tropical Pacific Ocean', and southern oscillation refers to 'a seesaw shift in surface air [..]
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El Niño describes 'the warm phase of a naturally occurring sea surface temperature oscillation in the tropical Pacific Ocean', southern oscillation refers to 'a seesaw shift in surface air pressure at [..]
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There are three main factors that directly influence the energy balance of the earth: the total energy influx, which depends on the earth's distance from the sun and on solar activity; the chemical [..]
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Per capita food production is declining in Africa, but it is increasing steadily in the world as a whole. This graphic shows the net food production per capita (PIN base 1989-1991) for Africa and for [..]
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Access to water is perhaps one of the greatest challenges for sustainable development in Africa. This resource includes three graphics. The first shows the average annual freshwater withdrawal, in [..]
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Human activities are causing greenhouse gas levels in the atmosphere to increase. This graphic explains how solar energy is absorbed by the earth's surface, causing the earth to warm and to emit [..]
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Africa is following the global trend of recent increases in temperatures. This resource includes three graphics. The first shows the main temperature anomaly in degrees Celsius in Africa from 1900 to [..]
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Climate change is expected to cause a rise in sea level. Sea level rise will have a significant impact on coastal areas, especially coastal megacities such as Banjul, the Gambia. This graphic shows [..]
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Developing countries, whose economies often rely heavily on one or two agricultural products, are especially vulnerable to climate change. This graphic shows that with an increase of only 2 degrees [..]
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Increasing temperatures will likely affect major crops such as tea in Kenya. Major impacts on food production will come from changes in temperature, moisture levels, ultraviolet (UV) radiation, CO2 [..]
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There is increasing evidence that climate change has a significant role in causing malaria epidemics. As climatic conditions change, the locations of suitable breeding habitats for the mosquitoes that [..]
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Straddling the borders of Nigeria, Chad, Niger and Cameroon in West Africa, Lake Chad has been a source of freshwater for irrigation projects in all these countries. This graphic traces the shrinkage [..]
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Many countries in sub-Saharan Africa face chronic malnutrition, with frequent famine episodes. This graphic shows the locations of areas in Africa which face chronic malnutrition (less than 2300 [..]
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At the February 2001 meeting of the American Association for the Advancement of Science (AAAS), researchers reported dramatic changes in the volume of ice capping the Kibo summit of Kilimanjaro.This [..]
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The potential impacts of sea level rise on the Nile Delta are expected to include a decline in water quality that would affect freshwater fish, the flooding of agricultural land and damage to [..]
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Natural disasters are increasing in number and frequency, and affect most countries in Africa. This graphic shows the amounts of people, in millions, who were affected by drought, by famine, by flood [..]
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As population increases, so does the demand for natural resources. This graphic shows how the world's population distribution has changed since 1750 (in 50-year increments), with projections for 2050 [..]
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Human land use along coasts and in major river basins can threaten coral reefs through toxic material inputs to coastal ecosystems. This graphic shows the areas of low, medium and high estimated [..]
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Water resources are inextricably linked with climate, so the prospect of global climate change has serious implications for water resources and regional development (Riebsame et al., 1995). This [..]
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The water supply situation in Africa is already precarious, and climate change is expected to exacerbate the problem. This graphic shows the amount of water supply coverage at the national level for [..]
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