The fossil fuel emissions of CO2, measured in Gtons CO2 per year, from the Developed, Developing A, and Developing B country groups.
Change the values to set future fossil fuel emissions as a percentage of Reference Year emissions reached by 2050, with reductions beginning in the Start Year.
The reference scenario used here is based on the IPCC scenario know as A1FI. The full version of C-ROADS allows users to drive scenarios with different reference scenarios.
The percentages apply to CO2equivalent emissions, which also include emissions of other greenhouse gases (methane, nitrous oxide, and fluorinated gases).
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Input "0" to use the country group's Business As Usual value, and input "1" to use your own % Change, Reference Year, or Start Year values.
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Change this values to set future fossil fuel emissions as a percentage of Reference Year emissions reached by 2050, with reductions beginning in the Start Year. The percentages apply to CO2equivalent emissions, which also include emissions of other greenhouse gases, i.e., methane, nitrous oxide, and fluorinated gases. Percent may range from -99 to 300.
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This year sets the emissions target against which changes are measured. Input may range from 1990 to 2008
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The year in which emissions reductions begin. Input may range from 2010 to 2049.
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With this version of C-learn we have updated the Reference Scenario, which serves as the emissions baseline.The global baseline emissions still follow those of the IPCC's A1FI scenario as they had in the previous version. However, the allocations between countries now better reflect the underlying assumptions of that scenario, which can be found at: http://bit.ly/hXyrtY.
The full version of C-ROADS (http://bit.ly/h4vDHM) allows users to drive scenarios with different reference scenarios.
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Many of the most developed nations. US, EU (27 countries) plus Norway and Sweden, Russia and former Soviet States, Japan, Canada, South Korea, New Zealand and Australia.
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Many of the fastest developing and larger nations. China, India, South Africa, Mexico, Brazil, Indonesia, and other large developing Asian countries.
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Smaller developing countries in the Middle East, Latin America (excluding Brazil and Mexico), Africa (excluding South Africa), and Asia.
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CO2 land use emissions from deforestation.
This value is a "0-1" index for future "land use" emissions starting in 2012, where a decrease in value reduces deforestation, thereby reducing CO2 land use emissions. A value of 1 yields constant emissions (5.4 GtonsCO2/year) through 2100, 0 eliminates deforestation by 2050, and 0.5 yields a drop of 50% by 2050, and remaining at that level until 2100. Regions with negative emissions will not experience a change, in which case the overall effect is slightly greater than the indicated change.
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Annual removal of CO2 from the atmosphere due to the creation of new forests.
This value is a "0-1" index for future creation of new forests, starting in 2010, where an increase in value removes more CO2 from the atmosphere. A value of 1 delivers the IPCC estimated maximum annual removal (5.9 GtonsCO2/year); 0.5 delivers half of the maximum.
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For deforestation, this is a "0-1" index for future "land use" emissions where a value of 1 yields constant emissions through 2050, 0 yields a 90% drop by 2050, and .5 yields a drop of 45%. For afforestation, this is a "0-1" index for the annual removal of CO2 from the atmosphere due to the creation of new forests, starting in 2009 and continuing until 2050, where a value of 1 delivers the IPCC estimated maximum removed per year; 0.5 delivers half of the maximum.
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Atmospheric CO2 concentration in the year 2100, in parts per million.
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CO2 concentration in the atmosphere, in parts per million.
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Global average temperature change above the average pre-industrial level, in degrees Celsius.
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Global average temperature change by the year 2100, in degrees Celsius.
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