Sentences with phrase «most land carbon»

The reds and yellows in the upper map show areas that historically have held the most land carbon.

Not exact matches

The study authored by Forest Service Southern Research Station (SRS) scientists John Coulston, David Wear, and Jim Vose is the first to isolate the impacts of forest disturbances, such as fire, disease, and cutting, as well as the impacts of land use change using permanent monitoring locations across the Southeast making it one of the most thorough carbon studies completed.

Small streams receive water from the surrounding land, and the most accepted idea has been that the carbon dioxide emitted from streams is exported from the land adjacent to the stream.

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.

Dr Sue Ward, the Senior Research Associate for the project at Lancaster University, said: «Peat is one of the earth's most important stores of carbon, but one of the most vulnerable to changes in climate and changes in vegetation caused by both climate and land management.

Ultimately, the group focused its investigation on the five strategies that appear to hold the most promise: reducing emissions, sequestering carbon through biological means on land and in the ocean, storing carbon dioxide in a liquefied form in underground geological formations and wells, increasing Earth's cloud cover and solar reflection.

It is the world's most common unit of land tenure and policy enforcement, yet very few countries have advanced their carbon monitoring efforts at such high resolution.

At the most fundamental level, the ecological footprint incorporates six measurements — city cover, carbon dioxide pollution, farm fields, fisheries, forests and rangeland — to reveal «the aggregate area of land and water ecosystems required by specified human populations to produce the ecosystem goods and services they consume and to assimilate their carbon waste.»

The groundbreaking study revealed that, globally, the year - to - year variability of the land carbon balance — the exchange of carbon that takes place between the land biosphere and the atmosphere — responds most significantly to changes in temperature.

The most extensive land - based study of the Amazon to date reveals it is losing its capacity to absorb carbon from the atmosphere.

Most soils have a limit, and increased organic carbon stock in soils depends on the type of soils and what the land is used for.

A new study by a team of IMAS and Canadian scientists has found that catching most types of fish produces far less carbon per kilo of protein than land - based alternatives like beef or lamb.

Developed countries, responsible for most of the excess CO2 in the air, might finance extensive efforts in developing countries to sequester carbon in the soil and in forest regrowth on marginal lands as described above.

Our goal is that Thrive ® Algae Oil will be one of the most sustainably produced cooking oils, with more Thrive ® Algae Oil produced per acre of land and a lower carbon and water footprint.

Implement the Global Climate Change Initiative: Undertaking a pragmatic, whole - of - government approach to speed the transition to a low - carbon, climate - resilient future, including (1) promoting clean energy solutions; (2) slowing, halting, and reversing emissions from land use; and (3) helping the most vulnerable countries strengthen climate resilience.

The world's wetlands too — often at risk from human exploitation — cover less than 6 % of the planet's land surface, but they hold the most carbon per hectare.

The most recent report of the International Panel on Climate Change says it is extremely likely that human influence has been the dominant cause of this warming which is driven by the build up of carbon dioxide emissions from fossil fuel combustion, cement production, and land use changes.

Currently, up to nearly half of humanity's carbon dioxide output ends up dissolved in seawater, with most landing in the Southern Hemisphere oceans, where wind - driven eddies bury it deeply.

Most deforestation is done to provide cleared land for agriculture, but the cutting down of trees and the planting of crops releases large amounts of carbon dioxide into the atmosphere, which adds to global warming, the researchers said.

tonyb, Black carbon, regular ash and wind erosion along with other hydro - logical changes from decimating beavers to draining wet lands to fight malaria likely have and will continue to have large impacts on climate, but who is to say that most of that hasn't been a good thing in terms of mankind?

[ISPM 6.3 c] This is true of most, but certainly not all, of the cited attribution studies, as even the ISPM admits that some studies do take into account forcings such as black carbon and land use.

It is quite likely that most of the human related warming is due to land use and black carbon / dust pollution.

The IPCC AR5 (2013) is now the most cited «total» carbon budgets — meaning energy sector emissions plus land use, land use change and forestry plus industrial sector emissions.

The largest reservoirs of carbon on land are in the forests of the tropics and the soils of northern high latitudes, which are paradoxically, the least studied of terrestrial ecosystems, with the bulk of research effort made where most ecologists live, in the mid-latitudes.

At Georgetown University today, Obama stated that his administration would expand renewable energy projects on federal lands, raise energy efficiency standards on appliances, and, most importantly, limit carbon pollution from both existing and new power plants, which represent about 40 percent of the U.S.'s emissions.

Most land supports increased vegetation carbon, with simulations agreeing on this increase in many locations.

The absurdity is that bottom up ecological and agricultural soil restoration is the best and most productive way to address carbon dioxide, land use change, forestry and agricultural emissions and black carbon emissions.

Reversing land degradation — 5 billion hectares globally — is the most effective way of reversing the build - up of carbon dioxide in the atmosphere.

We argue elsewhere (see section 14 in Supporting Information of [54]-RRB- that the commonly employed net land use estimates [256] are about a factor of two larger than the net land use carbon that is most consistent with observed CO2 history.

The most likely method of achieving negative emissions, biomass with carbon capture and storage (BECCS), is controversial because it might require very large areas of land to be set aside for fast - growing trees or other biomass crops.

«The most effective way to enhance forest carbon storage,» Professor Körner writes, «is to prevent logging old - growth forests and to extend the forested land area.

But the basic problem with most biofuels is amazingly simple, given that researchers have ignored it until now: using land to grow fuel leads to the destruction of forests, wetlands and grasslands that store enormous amounts of carbon.

I'll say the division of atmosphere -, ocean - and land - centric models is an important one as ocean holds the most heat, atmosphere is the modifier of absorbed energy, and land is the most complex (in carbon cycle) and important wrt agriculture, maybe equal amounts of code / computing time should be assigned to all of these?

Tilman and his colleagues found that, in addition to producing more than twice the biomass than single - species planting (not less than 238 % more than switchgrass), multiple - species plantations restored biodiversity, grew on degraded land and — perhaps most importantly — could be carbon negative.

Unlike most sectors that contribute to global warming, land use offers opportunities not only to reduce emissions, but to remove carbon from the atmosphere and store it.

Wind was by far the most promising, Jacobson said, owing to a better - than 99 percent reduction in carbon and air pollution emissions; the consumption of less than 3 square kilometers of land for the turbine footprints to run the entire U.S. vehicle fleet (given the fleet is composed of battery - electric vehicles); l the savings of about 15,000 lives per year from premature air - pollution - related deaths from vehicle exhaust in the United States; and virtually no water consumption.

Wetlands are less extensive than agricultural or forest lands, covering 0.7 - 0.9 billion hectares or 4 % -6 % of the land surface of the Earth, but they hold the most carbon per acre and offer 14 % of potential cost - effective natural climate solutions.

In 2011 more than half of the terrestrial world's carbon uptake was in the southern hemisphere — which is unexpected because most of the planet's land surface is in the northern hemisphere — and 60 % of this was in Australia.

However, two recent papers published in Science, including the one we discussed in our post, have pointed out that when you take into account land use changes, the global warming pollution benefit of corn ethanol is negligible or not a benefit at all but a negative (researcher Joseph Fargione's team found that most biofuels «create a «biofuel carbon debt» by releasing 17 to 420 times more CO2 than the annual greenhouse gas (GHG) reductions that these biofuels would provide by displacing fossil fuels.»)

It can be argued that soybean is not the most efficient feedstock for biodiesel because it occupies large tracts of land, incurs considerable carbon debt (even without considering ILUC), and has a low annual rate of saved carbon from replacing fossil diesel.

Despite the fact that I am a vegetarian I wouldn't much mind if most meat was sourced from such approaches to farming, and could well imagine that Mr Salatin's operation might well be carbon negative, given that his family took ruined land and rehabilitated it, restoring much of its vegetation while making it commercially viable.

With the stroke of a pen the technocrats quietly absolved government of all responsibility to reduce emissions from some of the most obvious and most tractable sources of pollution in the land: the fossil - fuel devouring power stations and factories whose smokestacks belch millions of tonnes of carbon dioxide into the atmosphere each year — not to mention huge amounts of other pollutants which damage our health more directly than CO2.