Sentences with phrase «scenarios for greenhouse»

These climate — health relationships were linked to alternative projections of climate change, related to unmitigated future emissions of greenhouse gases, and two alternative scenarios for greenhouse gas emissions.

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.

There were three scenarios for greenhouse gases, A, B and C, with B and C being nearly the same until the year 2000, when greenhouse gases stopped increasing in scenario C. Real - world forcings have followed the B and C greenhouse scenario almost exactly.

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.

«If we assume an optimistic scenario for greenhouse gas emissions — the RCP 2.6 scenario, [see Fact Box] which would result in a warming of about two degrees Celsius — then we can expect an increase in sea level similar to what we see in this video,» says climate modeller Martin Stendel from the Danish Meteorological Institute, Copenhagen.

While the researchers, led by Shaun Marcott of Oregon State, conclude that the globe's current average temperature has not exceeded the warmth that persisted for thousands of years after the last ice age ended, they say it will do so in this century under almost every postulated scenario for greenhouse gas emissions.

From our simulations, we conclude that warming by the middle of the twenty - first century that is stronger than earlier estimates is consistent with recent observed temperature changes and a mid-range «no mitigation» scenario for greenhouse - gas emissions.»

Not exact matches

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.

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

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

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.

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

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.

Due mainly to uncertainties in future greenhouse emissions, projections for the 2050s and 2080s diverge more — but in all scenarios mortality would rise steeply.

The team, led by epidemiologist Andrew Haines at the London School of Hygiene and Tropical Medicine, modelled a number of scenarios for reducing greenhouse gases.

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

IIASA researchers have been involved in greenhouse gas emission projections since the beginning of climate change research in the 1970s, including research on both historical emissions as well as projections for future emissions based on multiple scenarios of economic and population growth and technological change.

James A. Edmonds • Member, IPCC Steering Committee on «New Integrated Scenarios» (2006 - present) • Lead Author, Working Group III, «Framing Issues,» IPCC Fourth Assessment Report (2007) • Lead Author, Working Group III, «Global, Regional, and National Costs and Ancillary Benefits of Mitigation,» IPCC Third Assessment Report (2001) • Lead Author, Working Group III, «Decision - Making Frameworks,» IPCC Third Assessment Report (2001) • Lead Author, Working Group III, Summary for Policy Makers, IPCC Third Assessment Report (2001) • Lead Author, Working Group II, «Energy Supply Mitigation Options,» IPCC Second Assessment Report (1996) • Lead Author, Working Group II, «Mitigation: Cross-Sectoral and Other Issues,» IPCC Second Assessment Report (1996) • Lead Author, Working Group III, «Estimating the Costs of Mitigating Greenhouse Gases,» IPCC Second Assessment Report (1996) • Lead Author, Working Group III, «A Review of Mitigation Cost Studies,» IPCC Second Assessment Report (1996) • Lead Author, Working Group III, «Integrated Assessment of Climate Change: An Overview and Comparison of Approaches and Results,» IPCC Second Assessment Report (1996) • Lead Author, IPCC Special Report, Climate Change 1994: Radiative Forcing of Climate Change and An Evaluation of the IPCC IS92 Emission Scenarios (1994) • Lead Author, IPCC Special Report, Climate Change 1992: The Supplementary Report to the IPCC Scientific Assessment (1992) • Major contributor, IPCC First Assessment Report, Working Group III, Response Strategies Working Group (1991).

To derive the climate projections for this assessment, we employed 20 general circulation models to consider two scenarios of global carbon emissions: one where atmospheric greenhouse gases are stabilized by the end of the century and the other where it grows on its current path (the stabilization [RCP4.5] and business - as - usual [RCP8.5] emission scenarios, respectively).

• Lead Author, «Technological and Economic Potential of Greenhouse Gas Emissions Reduction,» IPCC Third Assessment Report (2001) • Lead Author, «Greenhouse Gas Emission Mitigation Scenarios and Implications,» IPCC Third Assessment Report (2001) • Member, IPCC Task Group on Scenarios and Data for Impacts and Climate Analysis (1998 - present).

«It's pretty convincing stuff: observations and the physical law of energy conversation have been used to show greenhouse gases are responsible for global warming and that alternative scenarios violate this law of nature.

Life - Cycle Greenhouse Gas Implications of U.S. National Scenarios for Cellulosic Ethanol Production, Corinne Scown, William Nazaroff, Umakant Mishra, Bret Strogen, Agnes Lobscheid, Eric Masanet, Nicholas Santero, Arpad Horvath, Thomas McKone, Environmental Research Letters, 7 (1), doi: 10.1088 / 1748-9326/7 / 1 / 014011, January 24, 2012.

A new framework for climate scenarios research brings an integrated view of economics, demography, and greenhouse gas emissions to the development of emissions scenarios that underlie climate models.

As these data sets expand (paleo - sea level / paleo - temperature) there's every chance we can home - in on some really self - consistent interpretations of temp / sea level / greenhouse gas relationships going back several millenia which we be extraordinarily useful as targets for modelling and as predictors of future scenarios.

due to co2 we are already living in a greenhouse.Whatever one does in that greenhouse will remain in the greenhouse.INDUSTRIOUS HEAT will remain in the greenhouse instead of escaping into outer space; this is a far greater contributor to global warming than other factors and far more difficult to reduce without reducing economic activity.Like warm moist air from your mouth on cold mornings so melting antarctic ice will turn into cloud as it meets warm moist air from tropics the seas will not rise as antarctica is a huge cloud generator.A thick band of cloud around the earth will produce even temps accross the whole earth causing the wind to moderate even stop.WE should be preparing for this possible scenario»

Action of emerging economies could take several forms, such as sustainable development policies and measures, an improved and strengthened clean development mechanism, the setting up of plans for the sectors that generate most pollution so as to reduce their greenhouse gas emissions compared with a business as usual scenario.

These scenarios are designed to yield sensitivity experiments for a broad range of future greenhouse forcings.

The film starts at the end, spinning through a fast - forward collection of the worst possible worst - case scenarios for climate should no effort be made to curb greenhouse gases.

An amazing amount of effort is being spent on postulating scenarios for the effects of greenhouse gases on the climate and how to prevent them.

A positive cloud feedback loop posits a scenario whereby an initial warming of the planet, caused, for example, by increases in greenhouse gases, causes clouds to trap more energy and lead to further warming.

One should not mix up a scenario with a forecast — I can not easily compare a scenario for the effects of greenhouse gases alone with observed data, because I can not easily isolate the effect of the greenhouse gases in these data, given that other forcings are also at play in the real world.

When talking to the media, some have been tempted to push beyond what the science supports — focusing on the high end of projections of global temperatures in 2100 or highlighting the scarier scenarios for emissions of greenhouse gases.

Based on results from large ensemble simulations with the Community Earth System Model, we show that internal variability alone leads to a prediction uncertainty of about two decades, while scenario uncertainty between the strong (Representative Concentration Pathway (RCP) 8.5) and medium (RCP4.5) forcing scenarios [possible paths for greenhouse gas emissions] adds at least another 5 years.

The team uses complex climate models, known as Earth System Models, to look for scenarios where greenhouse gas concentrations are compatible with the IPCC's RCP2.6 scenario — the only one that keeps global temperature rise below 2C.

Rao, S. and Riahi, K. (2006) The role of non-CO ₂ greenhouse gases in climate change mitigation: long - term scenarios for the 21st century, Energy Journal, Multi-Greenhouse Gas Mitigation and Climate Policy Special Issue, 177 - 200.

For CO2, the most important anthropogenically released greenhouse gas, year 2100 concentrations are somewhat higher in the Clarke et al. (2007) scenario, approximately 550 ppm CO2, than in RCP4.5, approximately 525 ppm CO2.

As the new Ceres report notes: «ExxonMobil does not analyze or quantify the effect on the company and on shareholder value of any plausible greenhouse gas regulatory scenarios; in fact, the company states that «it is impossible today to assess the potential implications for shareholder value from initiatives to address climate change,» in part because no governments have established definitive regulations for the 2008 - 2012 Kyoto period or for post-2012.

(2007) • Contribution of Renewables to Energy Security (2007) • Modelling Investment Risks and Uncertainties with Real Options Approach (2007) • Financing Energy Efficient Homes Existing Policy Responses to Financial Barriers (2007) • CO2 Allowance and Electricity Price Interaction - Impact on Industry's Electricity Purchasing Strategies in Europe (2007) • CO2 Capture Ready Plants (2007) • Fuel - Efficient Road Vehicle Non-Engine Components (2007) • Impact of Climate Change Policy Uncertainty on Power Generation Investments (2006) • Raising the Profile of Energy Efficiency in China — Case Study of Standby Power Efficiency (2006) • Barriers to the Diffusion of Solar Thermal Technologies (2006) • Barriers to Technology Diffusion: The Case of Compact Fluorescent Lamps (2006) • Certainty versus Ambition — Economic Efficiency in Mitigating Climate Change (2006) • Sectoral Crediting Mechanisms for Greenhouse Gas Mitigation: Institutional and Operational Issues (2006) • Sectoral Approaches to GHG Mitigation: Scenarios for Integration (2006) • Energy Efficiency in the Refurbishment of High - Rise Residential Buildings (2006) • Can Energy - Efficient Electrical Appliances Be Considered «Environmental Goods»?

However, «once commercially available, cellulosic ethanol produced in set - aside grasslands should provide the most efficient tool for greenhouse gas reduction of any scenario we examined,» the report added.

Such a 35 percent equivalent emission, happening year on year for centuries, would be more than enough to push Earth into a runaway hothouse scenario without any further human greenhouse gas releases.

However, current estimates of lake level changes are uncertain, even for continued increases in global greenhouse gas emissions (A2 scenario).

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

The energy system reference cases used for future greenhouse gas (GHG) emission pathways in climate change research are a case in point: baseline emission scenarios commonly project levels of coal combustion many times higher than current reserve estimates by the year 2100.

For all three scenarios, top - down projections of energy consumption and production were put into LEAP to generate greenhouse gas (GHG) emissions across all sectors of the economy.

First, the complicated models that develop emissions scenarios don't seem to be necessary for forcing the climate models; simply specifying a value of CO2 concentration (with the other greenhouse gases and anthropogenic aerosol) at 2100 along with a simple time trajectory is sufficient to force the climate model.

When it is found that the CO2 concentration growth rate has been found to be greater than the business as usual case (scenario A of Hansen et al, 1988) of about 1.5 ppm per year for the 1990s, the lolwat has moved away from CO2 to other greenhouse gases.

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

In developing a scenario for the death of the AAG, the birth of the Southern Ocean, and the transition from Paleogene greenhouse Earth to Neogene icehouse Earth, the neritic record of the northern margin is more in accord with the «Dinocyst biogeographic hypothesis» than with the «Tasman gateway hypothesis.»

The main purpose of the first phase (development of the RCPs) is to provide information on possible development trajectories for the main forcing agents of climate change, consistent with current scenario literature allowing subsequent analysis by both Climate models (CMs) and Integrated Assessment Models (IAMs).1 Climate modelers will use the time series of future concentrations and emissions of greenhouse gases and air pollutants and land - use change from the four RCPs in order to conduct new climate model experiments and produce new climate scenarios as part of the parallel phase.