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Cooling factors Cooling factors
The amount of aerosols in the air has direct effect on the amount of solar radiation hitting the Earth's surface. Aerosols may have significant local or regional impact on temperature. Water vapour is a greenhouse gas, but at the same time the upper white surface of clouds reflects solar radiation back into space. Albedo - reflections of solar radiation from surfaces on the Earth - creates difficulties in exact calculations. If e.g. the polar ice...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Sources of greenhouse gases Sources of greenhouse gases
Shows the sources for greenhouse gases, contributing to climate change, and their relative radiative forcing effect (radiative forcing is the change in the balance between radiation coming into the atmosphere and radiation going out)
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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UN Convention on Climate Change (UNFCCC) UN Convention on Climate Change (UNFCCC)
The United Nations Framework Convention on Climate Convention is the foundation of global efforts to combat global warming. Opened for signature in 1992 at the Rio Earth Summit, its ultimate objective is the 'stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic human-induced interference with the climate system. The Convention's supreme body is the Conference of the Parties (COP)...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Estimated Loss of Rainfall in Amazonia in the Next Century Estimated Loss of Rainfall in Amazonia in the Next Century
The synthesis of 23 climate models shows a decline in rainfall between 1980-1999 and 2080-2099 under mid- range (A1B) global greenhouse gas emissions scenarios. The dry season rainfall is particularly important (winter in north and summer in central and southern Amazonia).
20 Jun 2009 - by Philippe Rekacewicz assisted by Cecile Marin, Agnes Stienne, Guilio Frigieri, Riccardo Pravettoni, Laura Margueritte and Marion Lecoquierre.
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Contribution of various waste management systems to greenhouse gas emissions, 2002 Contribution of various waste management systems to greenhouse gas emissions, 2002
The disposal and treatment of waste can produce emissions of several greenhouse gases (GHGs), which contribute to global climate change. The most significant GHG gas produced from waste is methane. It is released during the breakdown of organic matter in landfills. Other forms of waste disposal also produce GHGs but these are mainly in the form of carbon dioxide (a less powerful GHG). Even the recycling of waste produces some emissions (although ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Contribution from waste to climate change Contribution from waste to climate change
The disposal and treatment of waste can produce emissions of several greenhouse gases (GHGs), which contribute to global climate change. The most significant GHG gas produced from waste is methane. It is released during the breakdown of organic matter in landfills. Other forms of waste disposal also produce GHGs but these are mainly in the form of carbon dioxide (a less powerful GHG). Even the recycling of waste produces some emissions (although ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Estimated contributions to sea-level rise (1993-2003) Estimated contributions to sea-level rise (1993-2003)
The two main reasons for sea-level rise are thermal expansion of ocean waters as they warm, and increase in the ocean mass, principally from land-based sources of ice (glaciers and ice caps, and the ice sheets of Greenland and Antarctica). Global warming from increasing greenhouse gas concentrations is a significant driver of both contributions to sea-level rise. From 1955 to 1995, ocean thermal expansion is estimated to have contributed about 0....
01 Oct 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Some examples of the effect of individual behaviour on greenhouse gas emissions in France Some examples of the effect of individual behaviour on greenhouse gas emissions in France
The area of the squares is proportionate to the annual reduction in emissions in million tonnes of CO2 equivalent. Displaying main areas of housing investment, daily life and private car investment.
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Greenhouse gas intensity of national economies Greenhouse gas intensity of national economies
The national greenhouse gas intensity measures the quantity of GHG emissions in relation to the economic output of a country and is independent of the absolute quantity of GHG emitted.
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Varying contribution to climate change Varying contribution to climate change
Share of transport-related greenhouse gas emissions generated by rail, sea, air and road.
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Top 20 greenhouse gas emitters Top 20 greenhouse gas emitters
Total greenhouse gas emissions and million tonnes of CO2 equivalent emitters including land use change and forestry for various worldwide countries.
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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World Greenhouse gas emissions by sector World Greenhouse gas emissions by sector
World Greenhouse gas emissions, end use, activity and gas for various energy sectors.
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Greenhouse gas programmes Greenhouse gas programmes
Various online resources for greenhouse gas programmes regarding types, focus, gases covered and boundaries.
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Strategic options for climate change mitigation Strategic options for climate change mitigation
Various measures for greenhouse gas reduction with both reduction (in CO2 equivalent) and cost (in Euros) quantified.
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Life cycle emissions of a computer Life cycle emissions of a computer
Displaying average composition of a desktop computer, average CO2 emissions from component manufacturing, life-cycle stages, inputs and greenhouse gas emissions.
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Certified Emission Reductions Certified Emission Reductions
One certified emission reduction unit is equivalent to a one-tonne reduction in greenhouse gas emissions (measured in CO2 equivalent).
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Energy consumption by usage in a building Energy consumption by usage in a building
Buildings (residential and commercial) account for 10 to 15% of all greenhouse gas emissions, including almost 70% carbon dioxide and 25% methane.
04 Jun 2008 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Norwegian emissions of SF6 Norwegian emissions of SF6
SF6 is a gas that is used in circuit breakers and other switchgear as an electrical insulator. SF6 is a highly potent greenhouse gas, over 23,900 times more effective at trapping infrared radiation than carbon dioxide.
12 Feb 2006 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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Emissions of HFC in CO2 equivalents in Norway, 85-96 Emissions of HFC in CO2 equivalents in Norway, 85-96
The graphic shows Emissions of HFC in CO2 equivalents in Norway from 1985 to 1996 with projections to 2010. HFCs are among the most important greenhouse gases and are covered under the Kyoto protocol. Hydrofluorocarbons (HFC's) do not harm or breakdown the ozone molecule, but they do trap heat in the atmosphere, making it a greenhouse gas, aiding in global warming. HFC’s are used in air conditioners and refrigerators.
12 Feb 2006 - by UNEP/GRID-Arendal
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Norwegian emissions of N2O Norwegian emissions of N2O
Emissions of N20 have a role in the enhanced greenhouse effect. N20 is a long-lived gas, surviving in the atmosphere for about 130 years. The concentration of N20 in the atmosphere is increasing due to a variety of sources including a small contribution from coal combustion.
12 Feb 2006 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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