RALSTON/AFP/Gettyalberta's oil-sands companies are required to reduce the intensity of their greenhouse-gas emissions under the province's emissions trading scheme.
It sets limits on the intensity levels of greenhouse gases emitted by Alberta facilities oil sands operations and coal-fired power plants,
These facilities must reduce their greenhouse-gas emissions intensity emissions per unit of production by 12%each year,
Not all greenhouse-gas emissions are measured in the same way or with the same level of accuracy.
continuous emissions-monitoring systems can directly monitor flue gases for CO2 and other greenhouse gases.
For example, Tokyo's greenhouse gas emitters can purchase credits from outside Tokyo, but are limited in how many they can apply against their emissions.
For the credit-creating projects to be effective at reducing overall greenhouse-gas emissions, the scheme operators are supposed to approve only projects that would otherwise not have gone ahead.
has no specific provisions for addressing agricultural greenhouse-gas emissions. The scientists recommend that parties to the UNFCCC establish a programme to develop a global sustainable agriculture strategy,
from where they will start to map lunar gravity in March 2012. go. nature. com/msewftregulation of aviation's greenhouse-gas emissions is set to start in the European union.
The first round of greenhouse-gas reduction commitments under the Kyoto Protocol will expire at the end of 2012,
best chance to establish a fresh road map to curb greenhouse-gas emissions. Agreed in 1997,
the Kyoto Protocol is still the only global treaty that sets out legally binding goals for countries to reduce greenhouse-gas emissions.
which countries can sell carbon credits for projects that lower greenhouse-gas emissions, such as renewable energy.
with 5%of the carbon credits being set aside to account for any leakage of stored greenhouse gases in the 20 years after they are buried.
Deforestation accounts for about 15%of global greenhouse-gas emissions and 75%of Brazil s. Katia Abreu, a senator from the state of Tocantins and  president of the Brazilian Confederation of Agriculture
but also erode Brazil s reputation as a global leader in cutting greenhouse-gas emissions. One key test of Brazil's resolve will come next June,
and examines how different levels of greenhouse-gas emissions could affect sectors such as agriculture, health and infrastructure over the twenty-first century.
which legally requires the United kingdom to reduce greenhouse-gas emissions by 80%from 1990 levels by 2050.
and methane, a greenhouse gas that is 25 Â times more potent than carbon dioxide, could cut the rate of global warming in half between now and 2050, according to an analysis published last week (D. Â Shindell et al.
while countries grapple with efforts to regulate emissions of carbon dioxide, the most important greenhouse gas."
and was prompted by a law passed in 2008 that was meant to support the growing efforts towards regulating greenhouse gases.
and type and volume of greenhouse gases, including the ubiquitous carbon dioxide and methane and the more esoteric fluorinated chemicals.
and track greenhouse-gas emissions, as well as those studying natural carbon cycles. As scientists pin down exactly where anthropogenic carbon emissions are coming from,
Carbon dioxide makes up about 95%of the greenhouse-gas emissions logged (although if emissions from agriculture and other sectors in the full US inventory are included,
And power plants overshadow any other stationary sources of greenhouse gases, accounting for about three-quarters of emissions in the inventory (see The gas tracker).
And almost all of the United states emissions of trifluoromethane (also known as HFC-23), a potent greenhouse gas, come from just two facilities the Honeywell International plant in Baton rouge, Louisiana,
The flood of data does not mean that scientists can stop measuring greenhouse-gas emissions in the atmosphere.
Pieter Tans and his team at the National Oceanic and Atmospheric administration s Earth System Research Laboratory in Boulder, Colorado, measure greenhouse-gas plumes from major facilities through a network
it is true that greenhouse gas emissions are higher than average. But their work underscores evidence that the environmental impacts of producing the oil sands are primarily local rather than global."
But their analysis did not delve into more subtle comparisons of the overall"life-cycle greenhouse gas emissions of various fuelsoil sands are as thick and sticky as their other moniker tar sands would suggest.
But there are many varieties of crude as well as various production methods that factor into cumulative life-cycle greenhouse-gas emissions.
which reduces surface disturbance but actually increases greenhouse-gas emissions as a result of higher energy consumption. Environmentalists see the pipeline,
and reduce greenhouse-gas emissions. Governments will surely demand additional detail from scientists in the coming years
In 2009, Europe introduced a Fuel Quality Directive that requires fuel suppliers to cut greenhouse-gas emissions from road fuels by 6%between 2010 and 2020.
to reach the 6%greenhouse-gas reduction target, she says
Ash-covered forest is'Permian Pompeii'An ancient swampy forest full of long-extinct plant species has been brought to life through analyses of well-preserved fossils entombed in a layer of volcanic ash.
The consortium is also looking at tackling overall greenhouse-gas emissions using carbon credits, which could be sold to private investors
"The uncertainty of their emission estimates is a great challenge for global greenhouse-gas mitigation.
It is pretty tough the greenhouses are falling apart, and labs aren speed t up to. I hope that in the next 2-3 years things will turn around,
a biofuel that could help to cut greenhouse-gas emissions and a route out of poverty for small-scale farmers.
In January, after the US Environmental protection agency (EPA) found that palm-oil fuels emitted only 11-17%less greenhouse gas than diesel over their entire life cycle,
greenhouse-gas emissions from the production and use of biofuels for transport be at least 35%lower than those from fossil fuels;
delivering greenhouse-gas cuts of at least 38%compared with conventional fuels, making it eligible for blending in biodiesels.
Germany, calculated the greenhouse-gas savings of rapeseed biofuel in several different situations. They looked at factors such as variations in soil quality and fertilizer application during crop production,
the team found greenhouse-gas savings of 29.7%for rapeseed, well below the commission's 38%estimate.
when the team used best-case greenhouse-gas-saving values for rapeseed production, did they find that the biofuel produces low enough emissions to be regarded as a sustainable biofuel under RED,
and Vietze s conclusion that the actual greenhouse-gas savings of rapeseed biofuel are much lower than those estimated by the commission.
Freire says that there are"huge uncertainties associated with the greenhouse-gas emissions of biodiesel.""The Europe directive is not transparent
but it is a net source of greenhouse-gas emissions. The ABC funds low-interest loans for activities such as agroforestry,
As of 2011, low-carbon agriculture money could be used to fund activities that caused emissions of other greenhouse gases,
the transgenic crops should be grown in contained greenhouses to prevent them from escaping into the environment.
China long ago passed America as the leading emitter of greenhouse gases. Developed world emissions have leveled off
reduce greenhouse gas emissions, and produce the economically-attractive technologies that developing nations must have access to
One-third of our greenhouse gas emissions come from agriculturethe global food system, from fertilizer manufacture to food storage and packaging, is responsible for up to one-third of all human-caused greenhouse-gas emissions, according to the latest figures from the Consultative Group on International Agricultural
Research (CGIAR), a partnership of 15 research centres around the world. In two reports published today1, 2, the CGIAR says that reducing agriculture s carbon footprint is central to limiting climate change.
Previous work has looked only at the contribution of agricultural production to greenhouse-gas emissions, including the release of nitrous oxide from soils from farming techniques such as tilling.
2007 and 2008, the researchers found that agricultural production provides the lion s share of greenhouse-gas emissions from the food system,
releasing up to 12,000 megatonnes of carbon dioxide equivalent a year up to 86%of all food-related anthropogenic greenhouse-gas emissions.
and transport contributes a large proportion of the food system s greenhouse-gas emissions, whereas in China, for example, fertilizer manufacture has the biggest role, the researchers found.
and concerns that biofuels may produce greater greenhouse-gas emissions than fossil fuels (see Nature http://doi. org/bmssn7;
or cancel a mission aimed at pinning down the mysterious carbon sinks that are slowing the rise of greenhouse gases in Earth s atmosphere.
) Neither Japan s existing Greenhouse Gases Observing Satellite nor NASA s Orbiting Carbon Observatory-2 (OCO-2),
will map greenhouse-gas concentrations in as much detail as Carbonsat, which would survey the whole globe with a resolution of 4 square kilometres."
implementing, and monitoring greenhouse-gas-emission policies, says atmospheric physicist David Crisp of NASA s Jet propulsion laboratory in Pasadena, California,
United nations data suggest that cities are responsible for some 70%of global greenhouse-gas emissions and that countries with high urbanization rates emit more CO2 per capita (see Urban emitters).
By closely tracking emissions in Los angeles and other mega  cities, researchers hope to test greenhouse-gas monitoring systems that may one day allow scientists to gauge the success of local
Scientists might be a couple of decades away from being able to track all anthropogenic greenhouse-gas emissions at high resolution from space,
To convert atmospheric concentrations of greenhouse gases into emissions, researchers must understand local meteorology and trace emissions back to their sources.
and forwards through time to understand the greenhouse-gas measurements. The approach builds on the Indianapolis project.
when the combined results of the greenhouse-gas measurements and modelling will enable cities to pinpoint methane emissions from natural-gas leaks, for example,
Ultimately, Miller and Duren envisage a trio of geostationary satellites that would allow constant surveillance of greenhouse-gas emissions not just over Los angeles,
-and-trade system to limit greenhouse-gas emissions remains one of the key failures of Obama s first term.
Since then, her agency has developed the first US greenhouse-gas standards for vehicles, tightened air-quality standards and proposed emissions limits for power plants.
Christine Gregoire, Bob Perciasepe A former governor of Washington, Gregoire signed a 2010 law setting up greenhouse-gas reporting requirements
if unexpected, reduction in US greenhouse-gas emissions during his first term. The decline is in part a result of the economic slowdown and a shift in electricity production from coal to natural gas,
These include federal greenhouse-gas standards for vehicles and the introduction by more than half of the states of significant energy and climate initiatives that could deliver further reductions  perhaps even the 17%cut by 2020 that Obama promised at the United nations climate summit in Copenhagen in 2009.
As a next step, Obama s administration is expected to impose two greenhouse-gas regulations targeted at power plants
Tropical forests unexpectedly resilient to climate changetropical forests are unlikely to die off as a result of the predicted rise in atmospheric greenhouse gases this century,
"we need to better understand how the atmospheric circulation responds to rising greenhouse-gas concentrations.
thus lowering greenhouse-gas emissions. Energy spending Investment in renewable energy technologies still falls short of the level needed to clean up the global energy system
Wild weather can send greenhouse gases spirallingclimate change has a disconcerting tendency to amplify itself through feedback effects.
which are also powerful greenhouse gases, are used in applications such as refrigeration. The deal, announced on 22 Â April,
Brazil reports sharp drop in greenhouse emissionsbrazil s greenhouse-gas emissions fell nearly 39%between 2005 and 2010,
a far cry from the time when tree felling drove roughly two-thirds of the country s greenhouse gas output.
Agriculture now accounts for the largest share of Brazil s greenhouse-gas output. Emissions from the sector increased 5. 2%from 2005 to 2010,
Lula committed Brazil to reducing its greenhouse-gas emissions by 36-39%by 2020, compared to business-as usual projections.
found that the greenhouse-gas emissions from the manufacture of plastic wood are nearly three times higher than those from the production of chemically treated cedar1.
Carbon tax scrapped Australia will shift from a carbon tax to an emissions trading system for greenhouse gases one year ahead of schedule, announced Prime minister Kevin Rudd on 16 Â July.
At the EPA, Mccarthy will oversee regulations to limit greenhouse-gas emissions and to improve water and air quality.
From next year, fipronil use will be limited mainly to seeds sown exclusively in greenhouses. The European Food safety Authority in Parma, Italy, concluded in May that maize (corn) seeds treated with fipronil pose a high acute risk to honeybees. ips trial approved On 19 july, Japan s health minister,
after scientists warned that production of some biofuels drives land clearance that can lead to greater greenhouse-gas emissions than from fossil fuel (see Nature 499,13-14;
and sugar cane in the hope of cutting greenhouse-gas emissions. Yet for more than half a decade, scientists have warned that many food-based fuels might actually be boosting emissions relative to fossil fuels.
NOAAINCREASED emissions of carbon dioxide, nitrous oxide and methane drove atmospheric greenhouse gases to their highest recorded levels in 2012, according to the US Â National Oceanic and Atmospheric administration (NOAA.
agricultural land is responsible for about 14%of the world s greenhouse-gas emissions, slightly more than the global contribution from planes, trains and automobiles.
On 13 september, researchers announced that they have bred a tropical pasture grass that can significantly suppress greenhouse-gas emissions.
"Its use produces greenhouse gases and it ruins soil fertility rather than improving it. He points out that many smallholders in Sub-saharan africa can scarcely afford to buy mineral fertilizers anyway.
For years, govern  ments have debated a treaty that would allow developed countries to offset their own greenhouse-gas emissions by helping tropical countries to conserve their forests.
equivalent to more than double the greenhouse gases emitted last year. But the measurements need to be more precise,
) Japan emissions Japan has scaled back its commitment to reduce greenhouse-gas emissions, according to news reports on 15 Â November.
which must reduce greenhouse-gas emissions by at least half, would drop from 1. 62%to 1. 33%.
From a scientific point of view, we knew that we had to move some of our GM experiments that had been in the greenhouse into the field,
because things that work in the greenhouse do not always work in the field. We had to do that
8 14 november 2013greenhouse gases Atmospheric greenhouse-gas concentrations reached a record high in 2012. According to a 6 Â November report by the World meteorological organization (WMO) in Geneva, Switzerland, carbon dioxide levels climbed last year to an average 393.1 parts per million (p. p m.)141%above preindustrial levels.
Long-lived greenhouse gases including CO2, methane, nitrous oxide and chlorofluorocarbons rose collectively by 2. 6 Â p. p m. to an equivalent CO2 concentration of 475.6 Â p. p m..The observations come from the WMO s global monitoring network,
as well as trends in emissions of greenhouse gases such as carbon dioxide, methane and chlorofluorocarbons (CFCS) ozone-depleting substances that also trap heat in the atmosphere between 1880 and 2010.
They found that changes in warming coincided with human-initiated adjustments in greenhouse-gas emissions.
But Estrada and his colleagues found that it folllowed a reduction in greenhouse-gas emissions associated with economic downturns
methane and another greenhouse gas called nitrous oxide continue to rise. The heat-trapping effect of long-lived greenhouse gases in the atmosphere has grown by nearly one-third between 1990 and 2012.
International negotiators are gathering in Warsaw this month for a United nations climate-change meeting to forge the beginnings of an agreement to replace the 1997 Kyoto Protocol,
which aimed to reduce emissions of greenhouse gases. CO2 remains still the main cause of global warming, says Estrada.
But the effects of the Montreal Protocol on climate show that a similar international agreement could be effective against some of the other secondary greenhouse gases,
Furthermore, a 2006 FAO study2 found that the livestock industry is directly or indirectly responsible for 18%of global greenhouse-gas emissions a larger share than all modes of transport combined."
European union member states are to reduce their collective greenhouse-gas emissions by 40%relative to 1990 levels (see page  597.
and Mars. Power-plant rules The US Environmental protection agency (EPA) published a controversial rule on 8 Â January governing greenhouse-gas emissions from new power plants.
Europe HFC ban The European parliament has approved a ban on potent greenhouse gases used in some cooling systems,
The industry has promised long that this second-generation biofuel will cut greenhouse-gas emissions, reduce US reliance on imported oil and boost rural economies.
It offers only modest savings in greenhouse-gas emissions compared to petrol (see Nature 499,13-14;
Ethanol made from corn stover produces at least 60%less greenhouse-gas emissions than petrol, and making it does not require any extra farmland.
because they put greenhouse gases into the atmosphere. Even a pine tree burned in a forest fire does not release as much carbon as a pine tree burned in a power plant Niel Lawrence a National Resources Defense Council lawyer told Greenwire.
%Considering how powerful these greenhouse gasses are they VASTLY offset CO2. Why don't you know this?
which are powerful greenhouse gases! Why do they allow this? Because climate change is a tool to control the people.
It's clear that our greenhouse gas emissions have increased the likelihood of some kinds of extremes
It's clear that our greenhouse gas emissions have increased the likelihood of some kinds of extremes
That process along with the methane the cows belch throughout their lives contributes as much as 51 percent of all greenhouse gas produced in the world.
Governments around the world have spent hundreds of billions of dollars on trying to reduce greenhouse gas emissions based on the panel's findings The New york times reports.
A 2009 study estimated that factory livestock is responsible for 50 percent of the world's man-made greenhouse gases.
and contribute minimal greenhouse gases. Many types of insects (like mealworms) don't even require water
Over 40%of our man made greenhouse methane comes from livestock for food. With an exponentially growing population of 8. 3 billion there isn't enough feed in the world to keep that number of cattle pigs
assuming there are still people who are stupid enough to believe that there is a problem. www. geocraft. com/WVFOSSILS/greenhouse data. htmlwhen greenhouse contributions are listed by source the relative overwhelming component of the natural greenhouse effect is readily apparent.
From Table 4a both natural and man-made greenhouse contributions are illustrated in this chart in gray and green respectively.
Adding up all anthropogenic greenhouse sources the total human contribution to the greenhouse effect is around 0. 28%(factoring in water vapor.
So we keep producing greenhouse gases and making babies and we fail to generate any truly creative new responses to these problems.
So we keep producing greenhouse gases and making babies and we fail to generate any truly creative new responses to these problems.
A new study from Colorado State university geology professor Ellen Wohl finds that these beaver meadows store carbon temporarily sequestering greenhouse gases from the atmosphere.
AND anaerobic decomposition as you would get with buried plant matter would produce methane which is a much more potent greenhouse gas than CO2.
Considering the climate stabilizing properties of greenhouse gasses and the importance of CO2 to life On earth we need to do everything we can to prevent carbon sequestration
during his unveiling of a new climate action plan a broad outline that includes efforts to curb greenhouse gas emissions
which generate about a third of our greenhouse gas emissions nationwide. We have already set limits for arsenic mercury
and carbon dioxide is a greenhouse gas. Therefore...give all of the people's money you can to companies that claim to be able to solve your problem.
which generate about a third of our greenhouse gas emissions nationwide. Unless it is paying rent tenant should probably be teneti would have to say that our president is doing the wrong thing here. yes it's always a good idea to work towards sustainability
Eating bugs could provide a sustainable source of snackage--they produce less greenhouse gas than cattle those four-legged methane-factories
This is What's Causing Climate Changeif you tried to list the biggest contributors to greenhouse gas emissions you might say cars or cows or airplanes.
Ecofys a sort of sustainable energy consultancy firm put together this infographic showing exactly where the greenhouse gases are coming from.
Greenhouse gases from fossil fuel burning are broken further down into type (coal oil natural gas) and then even further to specifics like cars airplanes and industries like paper or iron production.
Simply cutting down trees does not increase greenhouse gases in the atmosphere. If you burn those trees then atmospheric CO2 increases.
It is not a graph of greenhouse gas emissions which would include methane and other gases.
http://www. sciencedirect. com/science/article/pii/S0921818112001658it is true that in a closed greenhouse
doubling it) the greenhouse's atmosphere will warm slightly as a result. But the earth's atmosphere is closed not a greenhouse.
Again all the paleoclimate data shows that CO2 increases come hundreds of years after warming. The only place CO2 significantly contributes to warming is in the computer Global Climate Models that also assume (incorrectly) that CO2 increase is a positive feedback that causes more actual warming than predicted by the simple mathematical logarithmic relationship of CO2 to warming in a closed atmosphere.
and replacing it with purified Oxygen. the implication they want you to take from this is that man made greenhouse gasses are the real problem.
Why would she want tens of millions of additional greenhouse gas producing vehicles on the road threatening the very existence a new generation of Clintons?
Even purely theoretically in a closed system (like a greenhouse) temperature increases logarithmically as CO2 increases;
But some scientists say carbon dioxide emissions are irrelevant to measuring the greenhouse gas footprint of the nascent space tourism industry.
which is considered only a greenhouse gas because it sinks low in the atmosphere and warms the ground level.
Despite years of trying to measure it no one has shown yet conclusively that slow and steady release of greenhouse gases by humans has had a noticeable impact on the planet.
Decay of plant matter is a major sources of so-called greenhouse gas emissions such as methane or carbon dioxide.
Power plants contribute one-third of this country's greenhouse gases so this is a good place to start.
The Supreme court has held several times that the Environmental protection agency can regulate greenhouse gases and that means you can control carbon dioxide emissions without passing any new laws.
Higher animals such as primates and dolphins evolved in a greenhouse earth. Earth was damaged by an evasive plant species that kicked a series of global catastrophes called icebox earth
Water vapor accounts for 75%of all greenhouse gases. Sorry bud thats a fact. Man-made climate change is quite arrogant and convenient for climatologists.
-Again pollution and greenhouse gas aren't always the same topic. Stop throwing them together.
Our production of CO2 is a pollution that adds to our overall greenhouse gas. It's a considerable amount of CO2
but CO2 is compared not considerable to other greenhouse gases.@-@bob I didn't read those links yet I am just addressing Frosttty atm.
Nuclear power has prevented already 64 gigatons of greenhouse gas emissions and would prevent the equivalent of another 80 to 240 gigatons again depending on
But the main point is that nuclear power is cleaner and greener than sources that belch carbon dioxide and other greenhouse gases into the atmosphere.
and greenhouse gases accumulate. Solar's DAY; if it is to have one is now.
Carbon dioxide (CO2) is the chief greenhouse gas that results from human activities and causes global warming and climate change.
Can someone do the math on the greenhouse benefits of such a slaughter? This could be a Global Warmer'S v-Day
while being a greenhouse gas...is a minor player in the mix of things that go into effecting global climate.
interglacials solar activity and climate greenhouse gases...and google them individually...as related to climate change..
Do you not understand the nature of CO2 as a greenhouse gas? How about the acidification of the oceans because of the absorption of CO2?
When a horticulturalist wants to increase plant growth he increases CO2 in the greenhouse. Those pushing the global warming theory either paint over the fact that increases in CO2 will increase the growing season as well as increase plant size or they totally ignorant of this fact.
Like building giant greenhouses to grow food on to help take some strain off earth's resources.
Like building giant greenhouses to grow food on to help take some strain off earth's resources...
We would have to launch water CO2 soil chemical fertilizers the materials to construct the greenhouses
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