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Region: global

Human use and conversion of tropical forests
Tropical forests hold the largest terrestrial carbon store and are active carbon sinks. Reducing emissions from deforestation and degradation is a vital component of tackling dangerous climate change. In addition, tack...
27 May 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Maps of average sea ice extent in the Arctic summer (September) and winter (March), and in the Antarctic summer (February) and winter (September)
Passive microwave sensors on satellites have monitored the extent of the sea ice cover since 19782. This technique is widely used to investigate fluctuations in ice extent over the seasons, variability between years, and...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Estimates of people flooded in coastal areas in the 2080s as a result of sea-level rise and for given socio-economic scenarios and protection responses
The lines represent IPCC Special Report on Emissions Scenarios (SRES) based on different world views. The differences in impacts between the SRES scenarios for the same amount of sea-level rise and protection response re...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Climate feedbacks - the connectivity of the positive ice/snow albedo feedback, terrestrial snow and vegetation feedbacks and the negative cloud/radiation feedback
Feedback refers to the modification of a process by changes resulting from the process itself. Positive feedbacks accelerate the process, while negative feedbacks slow it down. Part of the uncertainty around future clima...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Ratio of wastewater treatment
The ratio of treated to untreated wastewater reaching water bodies for 10 regions. An estimated 90 per cent of all wastewa- ter in developing countries is discharged untreated directly into rivers, lakes or the oceans (U...
01 Mar 2010 - by UNEP/GRID-Arendal, Hugo Ahlenius
04 Oct 2007 - by
Radiation from Chernobyl
What do the Chernobyl disaster, the Three Gorges dam in China and the spread of the Sahel have in common? In each case natural and manmade influences have forced thousands, sometimes millions of people, to leave their la...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Sanitation Opyions
About sanitationoptions [converted]
04 Oct 2007 - by
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About p04-05-statlog-onecol
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About p04-05-aids
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About brasiliwater
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About p14-15-brazil
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About p06-07-water-gulf
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About p00-01-hazards
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About inde-dummy
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