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E T = cumulative carbon dioxide emissions (Tt C) ΔC A = change in atmospheric carbon (Tt C) and, 1Tt C = 3.7 Tt CO 2. TCRE can also be defined not in terms of temperature response to emitted carbon, but in terms of temperature response to the change in radiative forcing: [10] = / [10] where,
The Kaya identity is a mathematical identity stating that the total emission level of the greenhouse gas carbon dioxide can be expressed as the product of four factors: human population, GDP per capita, energy intensity (per unit of GDP), and carbon intensity (emissions per unit of energy consumed).
RCP 2.6 is a "very stringent" pathway. [6] According to the IPCC, RCP 2.6 requires that carbon dioxide (CO 2) emissions start declining by 2020 and go to zero by 2100.It also requires that methane emissions (CH 4) go to approximately half the CH 4 levels of 2020, and that sulphur dioxide (SO2) emissions decline to approximately 10% of those of 1980–1990.
very low GHG emissions: CO 2 emissions cut to net zero around 2050 1.6 °C: 1.4 °C: 1.0 – 1.8 SSP1-2.6: low GHG emissions: CO 2 emissions cut to net zero around 2075 1.7 °C: 1.8 °C: 1.3 – 2.4 SSP2-4.5: intermediate GHG emissions: CO 2 emissions around current levels until 2050, then falling but not reaching net zero by 2100 2.0 °C: 2.7 ...
Verified Emission Reductions are usually created by projects which have been verified outside of the Kyoto Protocol. One VER is equivalent to 1 tonne of CO 2 emissions. [3] Through these schemes, industries and individuals voluntarily compensate for their emissions or provide an additional contribution to mitigating climate change.
Projected changes over the 21st century in the atmospheric concentrations of three greenhouse gases: carbon dioxide (chemical formula: CO 2), methane (CH 4), and nitrous oxide (N 2 O). These projections by the United States Environmental Protection Agency are based on emissions scenarios contained in the SRES. [17]
The approach presents global warming as a problem which can be attacked using commercially available technologies to reduce CO 2 emissions. Selecting a set of mitigation strategies to create a stabilization triangle is a planning framework for identifying possible interventions for the reduction of emissions. The objective is to stabilize CO
More generally, an increase by a factor c/c 0 gives: ln(c/c 0)*5 W/m 2. These results are close to the approximation of a more elaborate yet simplified model giving ln(c/c 0)*5.35 W/m 2, [4] and the radiative forcing due to CO 2 doubling with much more complicated models giving 3.1 W/m 2.