Sentences with phrase «use carbon cycle»

Using our carbon cycle model we calculate that if we extract 100 ppm of CO2 from the air over the period 2030 — 2100 (10/7 ppm per year), say storing that CO2 in carbonate bricks, the atmospheric CO2 amount in 2100 will be reduced 52 ppm to 358 ppm, i.e., the reduction of airborne CO2 is about half of the amount extracted from the air and stored.

Alternatively, you can create your own CO2 concentration projections based on your own emission and ocean / biosphere sink / source scenarios using this carbon cycle applet created by Galen McKinley at Madison, which can then be integrated into EdGCM.

In order to estimate the cumulative CO2 emissions for use in calculating the carbon budget, ESMs within CMIP5 had to back - calculate emissions based on the atmospheric concentrations using the carbon cycle within each model.

We'd driving the models with the GHG concentrations, and using carbon cycle models within the climate models to simulate the natural carbon fluxes (atmosphere - land and atmosphere - ocean), which themselves are affected by the simulated climate change, and the residual needed to balance the carbon budget then indicates the anthropogenic emissions that would give the prescribed scenario of CO2 rise.

The IPCC projects emissions into the future (under a number of scenarios) and uses carbon cycle models to determine how those emissions will translate into concentrations.

Not exact matches

«It's essentially using a product which is already in the carbon cycle and used for a primary purpose.

In another seminar, Ecofys showed how life - cycle assessment tools are used by companies like Alpro to measure the carbon footprint of its products.

The price of protein: review of land use and carbon footprints from life cycle assessments of animal food products and their substitutes.

The research adds one important data point to the ongoing question of how much methane, a greenhouse gas with a warming potential 25 times that of carbon dioxide, is emitted in the life cycle of natural gas production, transport and use.

(Worse, use of ethanol instead of gasoline does little to reduce net carbon emissions once the energy - intensive full cycle of ethanol production — including the energy - intensive fertilizer and transport needs — is taken into account.)

By reconstructing past global warming and the carbon cycle on Earth 56 million years ago, researchers from the Niels Bohr Institute among others have used computer modelling to estimate the potential perspective for future global warming, which could be even warmer than previously thought.

Vargas will also use the award to provide eighth grade students — who are usually learning about the carbon cycle through their class curriculum — a chance to get a hands - on learning experience related to carbon.

The new study, by researchers at the University of Vienna and the International Institute of Applied System Analysis explores the role of microbial cheaters for soil carbon and nitrogen cycling using a computer model.

By using a combination of crop growth, hydrological, carbon and nitrogen cycle models, researchers found that the estimated land suitable for bioenergy grasses — particularly Miscanthus, the most productive bioenergy crop — is limited, despite its relatively high biomass productivity and low water consumption per unit of ethanol.

They're putting these tools to use to ask questions not just about ocean ecology, but about the carbon cycle as well.

The team used DayCent, an ecosystem modeling tool that tracks the carbon cycle, plant growth, and how growth responds to weather, climate and other factors at a local scale.

«We can use the inclusions to date different parts of an individual diamond, and that allows us to potentially look at how the processes that formed diamonds may have changed over time and how this may be related to the changing carbon cycle on Earth.»

In a study of the ocean's role in the global carbon cycle, Siegel and his colleagues used those nuggets to their advantage.

«The use of a solarized supercritical carbon - dioxide Brayton cycle would increase efficiencies, reduce space requirements and reduce costs associated with current large - scale concentrating solar power systems.»

Cornell University researchers factored in the carbon emissions over the course of natural gas's life cycle when it is extracted using hydraulic fracturing — which includes drilling the wells, erecting the construction sites, building pipelines to transport the gas, fueling the pumps that force the water underground, and transporting the wastewater — and concluded that natural gas is dirtier than coal.

Most plants rely on the C3 process, which uses carbon dioxide and fixes three - carbon compounds in a photosynthetic cycle, but a few have evolved the more efficient C4 variety, developing a competitive edge by fixing four carbons per cycle.

Through cellular respiration, the heterotrophic bacteria produced carbon dioxide waste, which was used by the phototrophic bacteria to kickstart the symbiotic cycle.

Using conjoined results of carbon - cycle and physical - climate model intercomparison projects, we find the median time between an emission and maximum warming is 10.1 years.»

A research team led by graduate student researcher Shannon Hagerty and Paul Dijkstra, biological sciences associate research professor, measured two key characteristics of soil microbes that determine their role in the soil carbon cycle: how efficiently they use carbon to grow and how long they live.

General circulation models have generally excluded the feedback between climate and the biosphere, using static vegetation distributions and CO2 concentrations from simple carbon - cycle models that do not include climate change6.

For instance, RPO alone can be used to track organic carbon cycles in rivers and their watersheds, in soils, and in ocean water.

Interests: Multi-disciplinary research on ocean and terrestrial carbon cycle processes using a variety of geochemical and isotopic techniques.

Human decisions have introduced additional perturbations to the carbon cycle, in the form of fossil - fuel burning, cutting down forests, and land use changes, just to name a few.

«Methanogens are critical players in the global carbon cycle and have potential uses for addressing human problems,» says William W. Metcalf, a microbiologist at the University of Illinois at Urbana - Champaign, and a member of the research team.

Dargaville, R.J., et al., 2002: Evaluation of terrestrial carbon cycle models with atmospheric CO2 measurements: Results from transient simulations considering increasing CO2, climate, and land - use effects.

Ricke and Caldeira sought to correct that by combining the results from two large modeling studies one about the way carbon emissions interact with the global carbon cycle and one about the effect of carbon on the Earth's climate used by the Intergovernmental Panel on Climate Change.

We use Earth's measured energy imbalance, paleoclimate data, and simple representations of the global carbon cycle and temperature to define emission reductions needed to stabilize climate and avoid potentially disastrous impacts on today's young people, future generations, and nature.

We use the dynamic - sink pulse - response function version of the well - tested Bern carbon cycle model [169], as described elsewhere [54], [170].

M2009 use a simplified carbon cycle and climate model to make a large ensemble of simulations in which principal uncertainties in the carbon cycle, radiative forcings, and climate response are allowed to vary, thus yielding a probability distribution for global warming as a function of time throughout the 21st century.

We use simple representations of the carbon cycle and global temperature, consistent with observations, to simulate transient global temperature and assess carbon emission scenarios that could keep global climate near the Holocene range.

His research is at the interface of ecosystems, land use, and climate change focusing on tropical deforestation and degradation, functional diversity of tropical canopies, conservation of African savannas, invasive species and climate change, and the effects of land use on the global carbon cycle.

ECCO model - data syntheses are being used to quantify the ocean's role in the global carbon cycle, to understand the recent evolution of the polar oceans, to monitor time - evolving heat, water, and chemical exchanges within and between different components of the Earth system, and for many other science applications.

Oxaloacetate is a four - carbon compound that begins the first reaction of the Krebs Cycle, a cycle containing a series of reactions that produces high - energy species to eventually be used to produce energy for the Cycle, a cycle containing a series of reactions that produces high - energy species to eventually be used to produce energy for the cycle containing a series of reactions that produces high - energy species to eventually be used to produce energy for the cell.

The ammonia is combined with carbon dioxide in the urea cycle, and excreted in urine, and the carbon skeleton can be either used for energy directly or converted into other compounds, such as glucose or fatty acids.

includes features of the ocean, the carbon cycle, the water cycle, how we use the ocean and how we harm it.

High school chemistry teacher Angela Harding used this formula for the first time during a recent instructional unit on the carbon cycle.

For a honest consideration of what their carbon footprint is one has to consider the full cycle: not just the materials (and what's required to obtain them), the generated byproducts and required energy that goes into manufacturing them, but also in using those devices (they don't run on air) and ultimately disposing them in a world where the usage lifespan we give to gadgets is progressively shorter, as we substitute them earlier for their fancier newer generations.

«Climate scientists presume that the carbon cycle has come out of balance due to the increasing anthropogenic emissions from fossil fuel combustion and land use change.

My impression was that the AR5 would use the Shindell et al. figure, but the reported figures are lower (20 year and 100 year figures of 28 and 84 w.o. carbon cycle feedbacks and 34 and 86 with).

General circulation models have generally excluded the feedback between climate and the biosphere, using static vegetation distributions and CO2 concentrations from simple carbon - cycle models that do not include climate change6.

[Response: First off, he is confusing models that include the carbon cycle with those that have been used in hindcasts of the 20th Century and are the basis of the detection and attribution of current climate change.

Because carbon cycle processes such as photosynthesis fractionate the heavy isotope 13C from the lighter 12C, isotopic analysis can usually be used to «trace» sources and sinks of carbon.

Small differences are likely due to the carbon cycle model used and the trends in additional forcings.

The difference between residence (turnover) time and adjustment time is a bit counterintuitive (and IMHO made more difficult to understand in the terminology used in AR5), but if you are going to write a paper suggesting that the carbon cycle scientists are wrong, then the onus is on you to make sure you really understand it first.

Metaphors that use blankets to explaining how the greenhouse effect works, income and spending in your bank account to stand in for the carbon cycle, what the wobbles in the Earth's orbit look like if the planet was your head, or conceptualizing the geologic timescale by compressing it to a day, for instance, all serve useful pedagogic roles.