Sentences with phrase «gas emission scenarios»

Pepper, W.J., Barbour, W., Sankovski, A., and Braaz, B., 1998: No - policy greenhouse gas emission scenarios: revisiting IPCC 1992.

Intergovernmental Panel on Climate Change model projections for 2100 exceed the full distribution of Holocene temperature under all plausible greenhouse gas emission scenarios.

The AMOC is very sensitive to different greenhouse gas emission scenarios.

(above) Percent increase in number of days per month exceeding the threshold cold temperatures necessary to cause approximately 50 % mortality in mountain pine beetle populations as projected under two greenhouse gas emission scenarios (i.e., representative concentration pathways; see Climate chapter) at mid century and end - of - century.

Our analyses focused on projecting the possible range of temperature and precipitation amounts in Montana, under our chosen greenhouse gas emission scenarios.

Global rates of temperature change in high and declining greenhouse gas emission scenarios.

Next year's school, «Adaptation and Mitigation: Responses to Climate Change,» will explore topics such as greenhouse gas emission scenarios, the economics of climate change, adaptation and mitigation measures, and climate policies.

Coffel and Radley Horton of Columbia University projected the number of hot summer days under a worst - case greenhouse gas emission scenario for

The researchers find that «ocean - driven melt is an important driver of Antarctic ice shelf retreat where warm water is in contact with shelves, but in high greenhouse - gas emissions scenarios, atmospheric warming soon overtakes the ocean as the dominant driver of Antarctic ice loss.»

«This is worrisome given that the temperature in the study region is predicted to rise by as much as 2 degrees by midcentury under the range of plausible greenhouse gas emissions scenarios,» said Avery Cohn, aassistant professor of environment and resource policy at Tufts, who led the work while he was a visiting researcher at Brown.

Crucially, lower greenhouse gas emissions scenarios did not always lead to widespread tree mortality.

She and her team then projected excess deaths from heat under a low and a high greenhouse gas emissions scenario, incorporating adaptation patterns.

The researchers analyzed climate suitability projections over time for 513 species across 274 national parks, under a high and low greenhouse gas emission scenario.

Under both modest and high greenhouse gas emissions scenarios, temperatures in the Colorado River Basin are projected to rise by 5 degrees Fahrenheit compared with the 20th - century average.

We analyzed the effect of a medium - high greenhouse gas emissions scenario (Special Report on Emissions Scenarios A2 in IPCC 2000) and included updated projections of sea - level rise based on work by Rahmstorf (Science 315 (5810): 368, 2007).

The IPCC TAR produced global temperature projections based on a number of possible greenhouse gas emissions scenarios from their Special Report on Emission Scenarios (SRES).

Soil moisture 12 inches below ground projected through 2100 for a high greenhouse gas emissions scenario.

Here we present a new index of the year when the projected mean climate of a given location moves to a state continuously outside the bounds of historical variability under alternative greenhouse gas emissions scenarios.

«The NASA Earth Exchange Global Daily Downscaled Projections (NEX - GDDP) dataset is comprised of downscaled climate scenarios for the globe that are derived from the General Circulation Model (GCM) runs conducted under the Coupled Model Intercomparison Project Phase 5 (CMIP5) and across two of the four greenhouse gas emissions scenarios known as Representative Concentration Pathways (RCPs).

The researchers» simulations suggest that because of sea level rise, Sandy - type surges have already become three times more likely between 1800 and 2000, and will become 4.4 times more likely by 2100, even under a moderate greenhouse gas emissions scenario.

Between its Second and Third Assessment Reports, the Intergovernmental Panel on Climate Change elaborated long - term greenhouse gas emissions scenarios, in part to drive global ocean - atmosphere general circulation models, and ultimately to assess the urgency of action to prevent the risk of climatic change.

Consequently, assuming mild greenhouse gas emission scenario (RCP2.6), areal extent of the conditions suitable for the processes in the study areas can contract 70 % by 2050 owing to changes in average air temperature and precipitation.

This suggests that IPCC projections of future global warming, which are based on various possible human greenhouse gas emissions scenarios, are reliable.

However, when these influences are filtered out (red), the observed temperatures fall very close to the central climate model projections, which RFC12 notes are based on greenhouse gas emissions scenarios that accurately reflect the observed CO2 changes over that timeframe.

The low greenhouse gas emissions scenario (RCP4.5 *) delays average climate departure to 2069 but does not prevent it.

Gaffin, S.R., 1998: World population projections for greenhouse gas emissions scenarios.

Nakic enovic, N., 2000: Greenhouse gas emissions scenarios.

Activity between 2012 - 2013 was focused on evaluating the emerging international archive of the World Climate Research Program Coupled Model Intercomparison Project phase 5 (WCRP CMIP5) and developing strategies to efficiently represent the diversity of results that CMIP5 will provide under the new «Representative Concentration Pathways» greenhouse gas emissions scenarios.

Hansen's paper created global warming projections based on three greenhouse gas emissions scenarios (A, B, and C).

The United Nations» Intergovernmental Panel on Climate Change (IPCC) fifth assessment report, the first part of which was released in September 2013 along with a Summary for Policymakers, found that «warming of the climate system is unequivocal» and will continue under all greenhouse gas emissions scenarios.

Not exact matches

Headed toward an 8 F rise in warming Other such low - probability but high - risk scenarios mentioned in the report include ecosystem collapses, destabilization of methane stored in the seafloor and rapid greenhouse gas emissions from thawing Arctic permafrost.

Tebaldi and co-author Pierre Friedlingstein, of the University of Exeter, analyzed when scientists would be able to detect the difference between a scenario known as RCP 2.6, where greenhouse gas emissions are curbed quickly, versus two other scenarios outlined in the Intergovernmental Panel on Climate Change reports.

Politics of deferred gratification Under one of the additional scenarios, known as RCP 4.5, humans take longer to reduce greenhouse gas emissions but eventually do so, and under the other, known as RCP 8.5, carbon dioxide concentrations continue to rise through 2100.

The draft report by the U.S. Global Change Research Program says it is likely the world will forfeit its ability to meet «rapid emission reduction» scenarios needed to stabilize greenhouse gas concentrations «within a few years.»

Under the worst - case scenario (RCP 8.5), which assumes that greenhouse gas emissions continue to rise throughout the 21st century, the authors show the potential for extremely large net increases in temperature - related mortality in the warmer regions of the world.

«With this tool we can examine not only carbon emissions, but also those of other greenhouse gases, and as a result tease apart the cost - effectiveness of the scenarios as well as identify what and where impacts are likely to occur for a range of resources,» says Daniel Kammen.

Global temperatures could rise dramatically in 2100 compared with current conditions (dark red areas) under some scenarios for global greenhouse gas emissions.

Another graphic, circulated on Twitter by German broadcaster Deutsch Welle, shows how different cumulative, historic emissions look from the current scenario: China three years ago surpassed the United States as the global greenhouse gas emissions leader.

In their newly published study, the U-M researchers examined cost, energy use and greenhouse gas emissions for different types of 60 - watt - equivalent bulbs and created a computer model to generate multiple replacement scenarios, which were then analyzed.

Scientists used modeling to simulate various growing scenarios, and found a climate footprint ranging from -11 to 10 grams of carbon dioxide per mega-joule — the standard way of measuring greenhouse gas emissions.

Yet if greenhouse - gas emissions from burning fossil fuels are not reduced at all, in a business - as - usual scenario, water management will clearly not suffice to outweigh the negative climate effects.

According to the commission's own impact assessment, the union is on track to meet the current target: Under a «business - as - usual» scenario, total greenhouse gas emissions are already expected to drop by 24 % in 2020 and 32 % in 2030 compared with 1990 levels.

Pieter Tans, a climate scientist at the National Oceanic and Atmospheric Administration who wrapped up the panel, said that while governments and policymakers should still aggressively pursue the goal of reducing greenhouse gas emissions, he did not believe that the most severe IPCC scenario, RCP 8.5, was likely.

They looked at each of those conditions through, first, a business - as - usual lens that assumes a lack of international climate - policy action with continued high rates of greenhouse gas emissions and, second, an optimistic scenario of reduced emissions with climate change policy interventions.

They considered scenarios of either unchecked greenhouse gas emissions or a global reduction in the rate of emissions growth.

To get a sense for how this probability, or risk of such a storm, will change in the future, he performed the same analysis, this time embedding the hurricane model within six global climate models, and running each model from the years 2081 to 2100, under a future scenario in which the world's climate changes as a result of unmitigated growth of greenhouse gas emissions.

Both scenarios assumed continued greenhouse gas emissions with significant warming.

Even under a more moderate scenario where greenhouse gas emissions peak in 2040, 100 - year extreme sea levels could increase by 57 centimeters, or nearly 2 feet, on average, by the end of the century, with these events occurring every few years, according to study's authors.

Meehl and his colleagues used two sophisticated computer models of global climate to predict what would happen under various scenarios for greenhouse gas emission controls, taking into account the oceanic time lag.

Two global scenarios, one of low greenhouse - gas emissions and the other of medium emissions, were created for each model.