Sentences with phrase «from carbon cycling»

The new insights can improve the modeling of many large - scale systems, from carbon cycling and climate change models to the distribution of animal and plant species, say the researchers.

Then of course there is the feedback from the carbon cycle itself.

I'm increasingly thinking that what we really need is an estimate of the sensitivity of the system to an injection of carbon dioxide including the feedback from the carbon cycle etc..

It should be noted that in their projections the IPCC has not taken into account the positive feedback from the carbon cycle.

The artic icecap is disappearing more rapidly than has been projected — as are the glaciers — and there is reason to believe that the positive feedback from the carbon cycle is already kicking in.

One does not have to worry about instabilities associated with ice sheets, feedback from the carbon cycle (even though this would seem to already be coming into play), or instabilities associated with ocean circulation.

What applies in the case of the «fast» feedback from water vapor or sea ice applies in the case of the «slow» feedback from the carbon cycle and ice sheets.

Certainly in terms of the underlying physics it is irrelevant whether it comes from us or various feedbacks from the carbon cycle.

But our data reveal a significant deviation from this behaviour: The atmospheric concentration of CO2 during MIS 17 remains significantly below the levels during MIS 13, 15 and 19; this is expected neither from the temperature variations which always reach comparable levels during these interglacials nor from carbon cycle models11.

Please see Archer 2005 or similar works — what he's examining is removal of carbon from the carbon cycle, or to be much clearer, movement of carbon from the ocean / atmosphere / biosphere compartments into rocks, reversing the movement we've made turning rocks / underground liquids into CO2.

They have not only excised the water cycle, and excised rain from the carbon cycle, but have excised the whole atmosphere which is the heavy voluminous fluid ocean of real gas Air weighting a ton on our shoulders and in its place have empty space with imaginary ideal gas molecules travelling under their own molecular momentum at great speeds through this empty space miles apart from each other bouncing off each other in elastic collisions, no attraction, and so «thoroughly mixing».

A future strong positive feedback from the carbon cycle, on the other hand, could add as much CO2 to the atmosphere as humans have, leading to temperature increases well beyond the International Panel on Climate Change's (IPCC) upper limits.

Again please expain where mans emissions are going that match the increase, it needs to disappear from the carbon cycle before you can point to another source.

Thus if it is decided in the future that CO2 must be extracted from the air and removed from the carbon cycle (e.g., by storing it underground or in carbonate bricks), the impact on atmospheric CO2 amount will diminish in time.

Not exact matches

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

While it's true that, unlike other types of power plants, nuclear reactors do not emit carbon dioxide (C02), the life cycle of generating nuclear power — from mining to refining to transportation to storage — requires an enormous amount of energy.

Global warming, from the release of carbon dioxide and perturbations to the nitrogen cycle from fertilizers

New research from the University of East Anglia shows that rising ocean temperatures will upset natural cycles of carbon dioxide, nitrogen and phosphorus.

They were hunting for signs of a molecular form of carbon dioxide that might help reveal clues to the cycling of carbon from slabs into the mantle.

Plankton plays an important role in the ocean's carbon cycle by removing half of all CO2 from the atmosphere during photosynthesis and storing it deep under the sea — isolated from the atmosphere for centuries.

But the researchers suspect that the creatures» poop, as well as their mucus houses, could transfer microplastics from the water's surface to the depths of the sea (along with nutrients such as carbon that cycle through the environment).

This is because firstly, the micro-organisms that break down dead trees produce copious amounts of CO2, and secondly, there is less vegetation remaining that can remove the greenhouse gas from the air by capturing the carbon in leaves, trunks and roots as part of its growth cycle.

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.

They report in Global Biogeochemical Cycles that, of the carbon entering coastal waters from rivers and the atmosphere, about 20 percent is buried while 80 percent flows out to the open ocean.

The team compiled data from many studies and for the first time synthesized observations and numerical model output to develop a cohesive view of the carbon cycle in a large coastal region.

The problem is that life - cycle analyses for biofuels literally assign a carbon credit to the biofuel that cancels out all the emissions from burning the fuel in the car.

While biofuels from crops, grasses, wood, agricultural residues and other materials emit less carbon than fossil fuels over a crop - to - vehicle life cycle, recent studies have questioned the availability of material to make fuels on a large scale.

The second must - have for life is a recycling of gases and minerals from the planet's interior to its exterior — known as the carbon cycle — which keeps the atmosphere in balance over long periods so life can emerge and survive.

«This finding is a major advance in understanding the natural carbon cycle, gained by applying a new understanding about how the «overturning circulation» of the Southern Ocean works,» said lead author Dr Andrew J Watson from the University of Exeter.

Cracks cover the moon's crust, which suggests it has cycled material from deeper inside, so the carbon - rich debris may have been incorporated into the ice and made it into the ocean, says Bottke.

Lyons and coauthors, along with research groups from around world over, are focusing current efforts on the timing and drivers of oxygenation in the late Proterozoic, favoring a combination of global - scale mountain building, evolutionary controls on the way carbon is cycled in the biosphere, and concomitant climate events.

Nor do they know what such changes mean for the food web; for life - cycle events like migration, breeding and nesting; for the amount of moisture that trees will suck from the soil; or for the amount of carbon dioxide stored by plants.

Because nitrogen and carbon cycles are tightly coupled, the team's discovery might also alter projections of carbon storage or release from arctic ecosystems as the climate warms.

These measurements will improve the understanding of the global carbon cycle, conclude Ying Sun from NASA's Jet Propulsion Laboratory in Pasadena and colleagues in the journal «Science.»

Different low carbon technologies from wind or solar energy to fossil carbon capture and sequestration (CCS) differ greatly when it comes to indirect greenhouse gas emissions in their life cycle.

«When it comes to life cycle greenhouse gas emissions, wind and solar energy provide a much better greenhouse gas balance than fossil - based low carbon technologies, because they do not require additional energy for the production and transport of fuels, and the technologies themselves can be produced to a large extend with decarbonized electricity,» states Edgar Hertwich, an industrial ecologist from Yale University who co-authored the study.

Researchers have known for years that diatoms can remove iron from oceans and carbon from the atmosphere, but little is known about how iron is cycled and removed from the Antarctic region.

«Precise measurement of the solar - induced chlorophyll fluorescence, derived from OCO - 2 — but also from follow - on missions such as the European Sentinel - 5P, which will be launched coincidentally now on October 13th — enables scientists to quantify gross primary production and its contribution to the global carbon cycle,» says Guanter.

As a result of this annual cycle, together with the continual emissions from fossil fuel burning (particularly over China, Europe, and the southeast United States), carbon levels reach a maximum in the Northern Hemisphere in April, just before terrestrial plants begin to soak up more carbon.

The studies open up new opportunities to uncover microbial genomes from other environments, revealing how microbes alter global carbon and nitrogen cycles, how microbial metabolism evolved, and how so many different kinds of microbes can coexist, says biological oceanographer Paul Falkowski of Rutgers University in New Brunswick, New Jersey.

In its oxidised state, carbon forms the greenhouse gas CO2, which is removed from Earth's atmosphere especially by the silicate - carbonate cycle, which acts like a thermostat.

Because of their combined mass, these animals also play a major role in the global cycling of carbon from the atmosphere to the seafloor, she added.

«The results can also help to understand fundamental processes in the nitrogen and the carbon cycle,» explains Dr. Florian Scholz from GEOMAR.

Now «superdeep» diamonds from Brazil reveal the carbon cycle does indeed reach deep into the mantle.

Tests from one to 50 atmospheric pressures showed the Rice compound captured a fifth of its weight in carbon dioxide but no measurable amount of methane, Barron said, and the material did not degrade over many absorption / desorption cycles.

«And even more, it incites them to understand how much carbon is emitted during the entire life cycle of those technologies — from their ongoing operation to their manufacture and disposal.»

Phytoplankton play key roles in several chemical and nutrient cycles, including taking up carbon dioxide from the atmosphere and either cycling it through food chains or sequestering it in the deep sea, says marine ecologist David Hutchins of the University of Southern California in Los Angeles, who wasn't involved in the current study.

A recent trend in GCMs is to extend them to become Earth system models, that include such things as submodels for atmospheric chemistry or a carbon cycle model to better predict changes in carbon dioxide concentrations resulting from changes in emissions.

Assistant Professor of Earth, Ocean and Atmospheric Science Robert Spencer and a team of researchers traveled to Siberia from 2012 to 2015 to better understand how thawing permafrost affected the carbon cycle and specifically to see if the vast amounts of carbon stored in this permafrost were thawing and how it w transferring to the atmosphere as carbon dioxide.

This year we head to Nashville to talk about dinosaurs ancient and otherwise, exoplanets, carbon cycling, pictures from Pluto, metallic hydrogen, photon pressure, and methane on Mars, among other things.