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Typology of Hazards Typology of Hazards
With growing population and infrastructures the world’s exposure to natural hazards is inevitably increasing. This is particularly true as the strongest population growth is located in coastal areas (with greater exposure to floods, cyclones and tidal waves). To make matters worse any land remaining available for urban growth is generally risk-prone, for instance flood plains or steep slopes subject to landslides. The statistics in the graph opp...
01 Feb 2006 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Trends in natural disasters Trends in natural disasters
With growing population and infrastructures the world’s exposure to natural hazards is inevitably increasing. This is particularly true as the strongest population growth is located in coastal areas (with greater exposure to floods, cyclones and tidal waves). To make matters worse any land remaining available for urban growth is generally risk-prone, for instance flood plains or steep slopes subject to landslides. The statistics in this graphic r...
01 Feb 2006 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Development in Central Asia [Russian] Development in Central Asia [Russian]
The predictive models for population growth and Gross Domestic Product (GDP) of the Aral Sea region shows there maybe some stabilization between the two and possibly some positive implications for the region. In Russian.
14 Feb 2006 - by I. Atamuradova, V. Yemelin, P. Rekacewicz, UNEP/GRID-Arendal
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Development in Central Asia Development in Central Asia
The predictive models for population growth and Gross Domestic Product (GDP) of the Aral Sea region shows there maybe some stabilization between the two and possibly some positive implications for the region.
14 Feb 2006 - by I. Atamuradova, V. Yemelin, P. Rekacewicz, UNEP/GRID-Arendal
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Climate change and natural disaster impacts in the Ferghana Valley Climate change and natural disaster impacts in the Ferghana Valley
Central Asia is a disaster-prone area, exposed to various natural hazards such as floods, droughts, avalanches, rockslide and earthquakes. It is also vulnerable to man-made disasters related to industrial activity and the radioactive and chemical dumps inherited from the Soviet period. Several factors - population density in disaster-prone areas, high overall population growth, poverty, land and water use, failure to comply with building codes an...
16 Mar 2006 - by Viktor Novikov, UNEP/GRID-Arendal
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World population scenarios World population scenarios
Some factors (such as global population growth) will begin to decline in importance and others (distribution of people, climate change, and changes to nutrient cycles) will gain more importance in the near future.
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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Trends in population, developed and developing countries, 1750-2050 (estimates and projections) Trends in population, developed and developing countries, 1750-2050 (estimates and projections)
Each day 200,000 more people are added to the world food demand. The world’s human population has increased near fourfold in the past 100 years (UN population Division, 2007); it is projected to increase from 6.7 billion (2006) to 9.2 billion by 2050, as shown in Figure 4 (UN Population Division, 2007). It took only 12 years for the last billion to be added, a net increase of nearly 230,000 new people each day, who will need housing, food a...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Projected changes in cereal productivity in Africa, due to climate change – current climate to 2080 Projected changes in cereal productivity in Africa, due to climate change – current climate to 2080
Water is essential not only to survival but is also equally or even more important than nutrients in food production. Agriculture accounts for nearly 70% of the water consumption, with some estimates as high as 85% (Hanasaki et al., 2008a,b). Water scarcity will affect over 1.8 billion people by 2025 (WHO, 2007). This could have major impacts on health, particularly in rural areas, and thus also major impacts on farmer productivity. Althoug...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Trends in urban and rural populations, less developed regions, 1960-2030 (estimates and projections) Trends in urban and rural populations, less developed regions, 1960-2030 (estimates and projections)
According to the latest UN estimates, almost all of the world’s population growth between 2000 and 2030 will be concentrated in urban areas in developing countries (Figure 32). By 2030, almost 60% of the people in developing countries will live in cities (FAO, 2003). If present trends continue, urban population will equal rural population by around 2017.
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Total population growth rates in the Southern Caucasus, 1989-2002 [Russian] Total population growth rates in the Southern Caucasus, 1989-2002 [Russian]
Peacefully resolving the overriding political, economic and social concerns of our time requires a multifaceted approach, including mechanisms to address the links between the natural environment and human security. UNDP, UNEP, OSCE and NATO have joined forces in the Environment and Security (ENVSEC) Initiative to offer countries their combined pool of expertise and resources towards that aim. ENVSEC assessment of environment and security linkag...
31 Oct 2006 - by Unknown
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Total population growth rates in the Southern Caucasus, 1989-2002 Total population growth rates in the Southern Caucasus, 1989-2002
Peacefully resolving the overriding political, economic and social concerns of our time requires a multifaceted approach, including mechanisms to address the links between the natural environment and human security. UNDP, UNEP, OSCE and NATO have joined forces in the Environment and Security (ENVSEC) Initiative to offer countries their combined pool of expertise and resources towards that aim. ENVSEC assessment of environment and security linkag...
31 Oct 2006 - by Unknown
4
World's surface water: evaporation and runoff World's surface water: evaporation and runoff
Because much of the world’s surface water is far from concentrations of human settlements, not all of it is readily usable. Some facts concerning global freshwater concentrations: - It is estimated that the freshwater available for human consumption varies between 12,500 km3 and 14,000 km3 each year (Hinrichsen et al., 1998; Jackson et al., 2001). - Many countries in Africa, the Middle East, western Asia, and some eastern European countries ha...
26 Jan 2009 - by Phillippe Rekacewicz (Le Monde diplomatique), February 2006
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Number of Disasters per Year Number of Disasters per Year
Trends in number of reported disasters. Much of the increase in the number of hazardous events reported is probably due to significant improvements in information access and also to population growth, but the number of floods and cyclones reported is still rising compared to earthquakes. Is global warming affecting the frequency of natural hazards?
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Water supply and demand in Nairobi Water supply and demand in Nairobi
The bulk of water supply for Nairobi comes from Thika, Sasumua and Ruiru Dams, as well as the Kikuyu Springs. Over time water supply for the city has failed to meet demand. The current estimated water demand for Nairobi is 650 000 m3/day compared to the production of 482 940 m3/day (WRMA 2010). The difference between production and demand has been widening over time due to population growth, inadequacy of the carrying capacity of the distributio...
18 Mar 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Access to water in urban Africa Access to water in urban Africa
Improved water sources, defined as “one that is protected from outside contamination” (WHO/UNICEF 2010), is essential for ensuring the health of Africa’s urban dwellers. Although an increasing number of people have access to improved water, rapid urban population growth in the African region has equally increased the number of people without proper access.
18 Mar 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Pressures on the South African coast Pressures on the South African coast
Population growth puts pressure on coastal ecosystems. Increased population means growing demand for land for housing and infrastructure, increased use of living resources for food, and more use of available freshwater resources. The negative environmental impacts of the shipping industry also harm the coastal ecosystem. Impacts from shipping include oil spills and the discharge of ballast water and waste into the sea, which affect the quality of...
21 Jun 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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Population growth in North Sumatra and Aceh 1920-2008 Population growth in North Sumatra and Aceh 1920-2008
Overall population growth in the region has been very rapid during the past nine decades. In 1920, the human populations of Aceh and North Sumatra provinces were 736,348 and 1,961,678, respectively (Volkstelling 1922). By 2008, these had risen dramatically to 4,293,915 and 13,042,317 (BPS 2010a).
13 Sep 2011 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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