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Strategic options for climate change mitigation Global cost curve for greenhouse gas abatement measures Strategic options for climate change mitigation Global cost curve for greenhouse gas abatement measures
This graphic attempts to show 'all in one': the various measures for greenhouse gas reduction with both reduction (in CO2 equivalent) and cost (in Euros) quantified. Read from left to right it gives the whole range of strategic options ranging from low hanging fruit, such as building insulation, in green (coming with economic savings) to the increasingly higher hanging ones, such as afforestation, wind energy, in red. * Carbone Capture and St...
05 Jan 2009 - by UNEP/GRID-Arendal
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The disappearance of the Aral Sea The disappearance of the Aral Sea
The demise of the Aral Sea in central Asia was caused primarily by the diversion of the inflowing Amu Dar’ya and Syr Dar’ya rivers to provide irrigation water for local croplands. These diversions dramatically reduced the river inflows, causing the Aral Sea to shrink by more than 50%, to lose two-thirds of its volume, and to greatly increase its salinity. At the current rate of decline, the Aral Sea has the potential to disappear completely by 20...
26 Jan 2009 - by GRIDA
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Ozone Hole Size Ozone Hole Size
The extent of ozone depletion for any given period depends on complex interaction between chemical and climatic factors such as temperature and wind. The unusually high levels of depletion in 1988, 1993 and 2002 were due to early warming of the polar stratosphere caused by air disturbances originating in mid-latitudes, rather than by major changes in the amount of reactive chlorine and bromine in the Antarctic stratosphere.
02 Nov 2009 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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The 'Hole': A Result of Specil Weather Conditions over the Pole Repeated Every Spring The 'Hole': A Result of Specil Weather Conditions over the Pole Repeated Every Spring
The Antarctic continent is circled by a strong wind in the stratosphere which flows around Antarctica and isolates air over Antarctica from air in the midlatitudes.
02 Nov 2009 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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