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Caspian coastline vulnerable to flooding Caspian coastline vulnerable to flooding
This map depicts the Caspian coastline that is vulnerable to flooding.
17 Oct 2013 - by GRID-Arendal
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Zambezi River Basin flood areas Zambezi River Basin flood areas
Over the last two decades, the Zambezi River Basin has experienced extreme floods and droughts (SARDC and HBS 2010). Most of the flooding in the basin is associated with active cyclones that develop in the Indian Ocean. The IPCC predicted that tropical cyclones will become more intense, with higher peak wind speeds and heavier precipitation associated with increases in tropical sea surface temperature (IPCC 2009). Major floods were recorded in p...
14 Oct 2013 - by GRID-Arendal
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Recent flood events in the Hindu Kush-Himalaya region Recent flood events in the Hindu Kush-Himalaya region
Extreme vulnerability to natural hazards among countries in South Asia is cyclical and repeatedly causes major setbacks in the socioeconomic and equitable development of the region. According to UN estimates major disasters may cut the GDP of countries in the region by up to 20 per cent. Climate change is expected to increase both the frequency and magnitude of hazards leading to disasters. It calls for speedy action to help communities...
09 Mar 2012 - by GRID-Arendal
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Caspian coastline vulnerable to flooding Caspian coastline vulnerable to flooding
Uncertainty regarding future variations in the sea level is holding back the development of many coastal zones suitable for holiday amenities or the construction of ports. But stretches of the Caspian coast are already packed with unsustainable tourist developments. The Iranian coastal area, home to some 7 million people, has registered a 5 per cent annual increase in population over the past decade. Demographic pressure has turned the ar...
07 Mar 2012 - by Original cartography by Philippe Rekacewicz (le Monde Diplomatique) assisted by Laura Margueritte and Cecile Marin, later updated by Riccardo Pravettoni (GRID-Arendal), Novikov, Viktor (Zoi Environment Network)
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People Affected by Natural Disasters During the Period 1971 to 2001 People Affected by Natural Disasters During the Period 1971 to 2001
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 and by epidemics related to [natural] disasters in Africa for the period 1971 to 2001.
17 May 2005 - by Digout, Delphine, based on a sketch by Philippe Rekacewicz; UNEP/GRID-Arendal
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Great weather and flood catastrophes over the last forty years Great weather and flood catastrophes over the last forty years
Some reports suggest that increase in climate variability or extremes has taken place in recent decades. However, there are inadequate data to determine whether such global changes have occurred consistently over the 20th century. On regional scales there is clear evidence of changes in some extremes and climate variability indicators - for example, fewer frosts in several widespread areas; and an increase in the proportion of rainfall from extr...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Ore production and waste generation at Ok Tedi Mine Ore production and waste generation at Ok Tedi Mine
The Ok Tedi mine is located high in the rain forest covered Star Mountains of Papua New Guinea. Prior to 1981 the local Wopkaimin people lived a subsistence existence in one of the most isolated places on earth. That was before the 10 000 strong town of Tabubil suddenly appeared in the middle of their community. The Ok Tedi mine was built on the world’s largest gold and copper deposit (gold ore capping the main copper deposit). From the very begi...
17 May 2005 - by Philippe Rekacewicz, 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...
29 Nov 2007 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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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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Conflicts and disasters - potential powder kegs (landmines and other explosives) Conflicts and disasters - potential powder kegs (landmines and other explosives)
The planet is scattered with hazardous or explosive leftovers from a succession of technical breakthroughs – be they military or industrial – just waiting to be washed away by a flood or mudslide or carried off by a hurricane. If disaster strikes these “powder kegs” multiply the danger to people and the environment (posing a particularly acute threat to already scarce water resources).
01 Feb 2006 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Formation of lakes and glacier lake outburst floods (GLOFs) by Medvezhi Glacier, Pamirs Formation of lakes and glacier lake outburst floods (GLOFs) by Medvezhi Glacier, Pamirs
The increasing number of glacial and moraine lakes in Central Asian mountains is a matter of great concern. One of the surging glaciers that poses a potential threat is the 15 km long Medvezhi (Bear) Glacier in the Pamirs mountains of Tajikistan. Its surges have repeatedly caused lake formation, outburst and subsequent floodings. In 1963 and 1973, the surge of the glacier was so significant (1 to 2 km increase in length) that the ice dam exceeded...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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People affected by natural disasters in Africa from 1971 to 2001 People affected by natural disasters in Africa from 1971 to 2001
Poor people all over Africa are vulnerable to droughts and floods since many depend on rainfed agriculture as their main means of subsistence and often live in degraded areas susceptible to rainfall variation (cleared of trees and vegetation).
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Poverty and cholera in Kwazulu-Natal January 2001 Poverty and cholera in Kwazulu-Natal January 2001
Data and maps on poverty, sanitation, safe and clean water and the incidence of cholera were used to help contain the spread of cholera in the Kwazulu Natal province in January 2001. Poverty and cholera data sets showed that the cholera outbreak followed a river flood plain and moved through and towards poor areas.
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Inland water and mountain systems Inland water and mountain systems
Inland water systems are permanent water bodies inland from the coastal zone and areas whose properties and use are dominated by the permanent, seasonal, or intermittent occurrence of flooded conditions. Inland waters include rivers, lakes, floodplains, reservoirs, wetlands, and inland saline systems.
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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Millennium Ecosystem Assessment conceptual framework Millennium Ecosystem Assessment conceptual framework
International demand for timber may lead to a regional loss of forest cover, which increases flood magnitude along a local stretch of a river. Similarly, the interactions can take place across different time scales. Actions can be taken either to respond to negative changes or to enhance positive changes at almost all points in this framework.
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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Number of flood events by continent and decade since 1950 Number of flood events by continent and decade since 1950
Roughly 17% of all the urban land in the United States is located in the 100-year flood zone. Likewise, in Japan about 50% of the population lives on floodplains, which cover only 10% of the land area. In Bangladesh, the percentage of floodprone areas is much higher and inundation of more than half of the country is not uncommon.
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, 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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Natural hazard hotspots, by risk type Natural hazard hotspots, by risk type
Disasters and natural hazards represents one strong aspect of vulnerability for the exposed and poor of the World. With climate change, the frequency of certain natural hazards are expected to increase. This map presents an output from an analysis investigating hazard exposure and historical vulnerability for selected natural hazards, together with population distribution and economy. Specifically, this map provides information on what natural ha...
08 Mar 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
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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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