Sentences with phrase «emissions pathways ranging»

Our new infographic, based on IPCC data, depicts the likely consequences of various emissions pathways ranging from a low - carbon future to a fossil fuel - intensive one.

The infographic below, based on IPCC data, depicts the likely consequences of various emissions pathways ranging from a low - carbon future to a fossil fuel - intensive one.

Not exact matches

The What We Know report further states that «according to the IPCC, given the current pathway for carbon emissions the high end of the «likely» range for the expected increase in global temperature is about 8 ˚ F by the end of the century.

When we adjust the TAR emissions scenarios to include an atmospheric CO2 pathway that is based upon observed CO2 increases during the past 25 yr, we find a warming range of 1.5 — 2.6 °C prior to the adjustments for the new findings.

In summary, transitioning toward a 2oC pathway, as suggested by the range of related 2040 performance levels shown on the chart, would imply that global emissions peak and steadily fall to close to 1980 levels by 2040.

The chart also illustrates a range of 2040 «performance levels» reflecting hypothetical combinations of global energy intensity and CO2 emission intensity levels that, if reached in 2040, might indicate the world was on a 2oC pathway.

Therefore, across any reasonable range of pathways, two other factors remain critical to limiting CO2 emissions:

Whether you agree with it or not, the projections by 2050 range from a minimum of around 1.5 oC (if we choose to follow a very low emission pathway) to around 2.6 oC (if we choose to follow a very high emission pathway).

Given the range for climate sensitivity, it is clear that it is possible that we could follow a reasonably high emission pathway and not warm substantially (okay, this may not be true if we follow a particularly high emission pathway, but let's agree that there is a possibility that warming will not be substantial for some reasonable emission pathway).

A wider range of functional forms to describe emission pathways would be expected to reduce the strength of the relationship between 2050 emissions and peak warming.

Extending this analysis to include pathways with cumulative emissions of more than 3 TtC, a resultant warming of more than 3 — 4 °C, or cases in which temperatures fail to peak by 2500 would be possible in principle, but would take us outside the range of pathways for which such a simple model is appropriate.

We choose the ranges of the parameters to give a range of emission pathways with cumulative emissions to 2200 between 0.7 and 3 TtC.

Our method consists of deriving a range of idealized CO2 emission pathways and using a simple coupled climate — carbon - cycle model to estimate the resulting climate change.

This limited range of pathways all have a rate of warming less than 0.2 °C per decade, which initially suggests that a cumulative emissions target could be used to constrain rates of warming, assuming that rates of decline are kept at less than 4 per cent per year.

Projected global average temperature rise above pre-industrial levels under a range of future scenarios, «business as usual» (BAU), which assumes no mitigation efforts are made (RCP8.5); «mitigation», which assumes moderate emissions (RCP4.5) without negative emissions, «carbon dioxide removal» (CDR), which assumes moderate emissions with long - term CO2 removal; and «solar radiation management» (SRM), which is the same as the CDR pathway but also includes enough SRM to limit temperatures to 1.5 C by 2100.

Representative Concentration Pathways, are referred to as pathways in order to emphasize that they are not definitive scenarios, but rather internally consistent sets of time - dependent forcing projections that could potentially be realized with more than one underlying socioeconomic scenario... They are representative in that they are one of several different scenarios, sampling the full range of published scenarios (including mitigation scenarios) at the time they were defined, that have similar RF and emissions charactePathways, are referred to as pathways in order to emphasize that they are not definitive scenarios, but rather internally consistent sets of time - dependent forcing projections that could potentially be realized with more than one underlying socioeconomic scenario... They are representative in that they are one of several different scenarios, sampling the full range of published scenarios (including mitigation scenarios) at the time they were defined, that have similar RF and emissions charactepathways in order to emphasize that they are not definitive scenarios, but rather internally consistent sets of time - dependent forcing projections that could potentially be realized with more than one underlying socioeconomic scenario... They are representative in that they are one of several different scenarios, sampling the full range of published scenarios (including mitigation scenarios) at the time they were defined, that have similar RF and emissions characteristics.

To cover this vast amount of ground, it discusses, at a high level, subjects ranging from observations of various parts of the climate system and climate modelling to the limits of economic assessments, the different pathways of greenhouse gas emissions considered, adaptation response strategies and methods of mitigation that include everything from from taxing greenhouse gas emissions to removing carbon dioxide directly from the atmosphere.

When we adjust the TAR emissions scenarios to include an atmospheric CO2 pathway that is based upon observed CO2 increases during the past 25 yr, we find a warming range of 1.5 - 2.6 °C prior to the adjustments for the new findings.

The projected 2081 - 2100 range of even Representative Concentration Pathway (RCP) 4.5 — an emissions scenario which we are currently exceeding greatly, and the mildest one barring the sort active drawdown just mentioned — is 1.1 to 2.6 C, with a mean of 1.8 C.

Global carbon dioxide emissions continue to track the high end of a range of emission scenarios, expanding the gap between current emission trends and the emission pathway required to keep the global - average temperature increase below 2 degrees Celsius.