As a result, small - scale sustainable farms have been found to emit between one - half and two - thirds
less carbon dioxide for every acre of production.
Another automotive engine technology that gets better mileage than standard internal - combustion power plants and hence, produces
less carbon dioxide for each mile driven, is the gasoline - electric hybrid, which marries a gasoline engine with electric motors.
Another technology that gets better mileage than standard engines, and hence produces
less carbon dioxide for each mile driven, is the gasoline - electric hybrid, which marries a gasoline engine with electric motors.
Not exact matches
Natural gas is primarily composed of methane, a greenhouse gas that is more potent than
carbon dioxide, but remains in the atmosphere
for less time.
Industrialized countries with
less than a quarter of the world's population are responsible
for about three - quarters of the
carbon dioxide released by burning fossil fuels.
Hansen's assessment is simple: we need, as a planet, to be emitting
less carbon dioxide inside of ten years — an enormous task given that China and India are finally beginning to use power in appreciable quantities (and not
for luxuries but
for the second light bulb or first refrigerator in a house).
The figure estimates 4.2 tons
less of
carbon dioxide emissions each year
for each truck.
For comparison's sake, potatoes have a
carbon cost of
less than 2 kg of
carbon dioxide per kilogram produced.
Instead, the Administration's plans
for energy conservation and using energy sources with
less CO2 emission will help in the short - term, he said; down the road, a new National Climate Change Technology Initiative will help develop cutting - edge technologies such as fuel cells and
carbon dioxide sequestration, Bush said.
«When taking into account that production of the far smaller batteries of plug - in hybrids is associated with
less carbon dioxide emissions than production of the larger batteries of electric vehicles, their
carbon dioxide balance is even better,» says Patrick Jochem of KIT's Institute
for Industrial Production.
In a fossil fuel - fired generator, this means
less carbon dioxide emissions
for the same unit of electricity produced.
For example,
carbon dioxide is
less soluble in water in a warmer climate.
It produces
less carbon dioxide emissions than coal
for electricity or gasoline and diesel
for fuel, but even a small amount of natural gas release — which is essentially methane — packs a greenhouse gas punch about 30 times more powerful than the same amount of
carbon dioxide.
EUROPE»S plans
for tackling global warming by driving down emissions of
carbon dioxide may have backfired in Germany, where they have encouraged energy companies to build coal - fired power stations instead of gas - fired stations, which emit
less CO2.
In its annual analysis of trends in global
carbon dioxide emissions, the Global
Carbon Project (GCP) published three peer - reviewed articles identifying the challenges
for society to keep global average warming
less than 2 °C above pre-industrial levels.
It produces no
carbon dioxide exhaust emissions, and even when the CO2 released in generating the electricity used to charge its batteries is factored in, it is responsible
for less than half the amount emitted by the «greenest» petrol cars.
Although ponds
less than a quarter of an acre in size make up only 8.6 % of the surface area of the world's lakes and ponds, they account
for 15.1 % of
carbon dioxide (CO2) emissions and 40.6 % of diffusive methane (CH4) emissions.
Millet is a so - called C4 plant, which has a very efficient photosynthetic system
for capturing
carbon dioxide, whereas most other plants that grow in northern China are
less efficient C3 plants.
But if people were better at using
less electricity, which accounts
for 38 percent of
carbon dioxide emissions in the United States, the potential
for reducing emissions would be huge.
The assessments shall reflect the relative
carbon dioxide emission rates of different fossil fuel - based electricity, and initially shall be not
less than the following amounts
for coal, natural gas, and oil:
That was because their warming effect is
less straightforward than
for carbon dioxide.
To stick within the two degree target, this means the budget
for carbon dioxide emissions ends up being
less than the original 1000 billion tonnes.
For it to remain likely that we stay below two degrees, the total amount of
carbon released through
carbon dioxide emissions must be
less than 1000 billion tonnes, the IPCC says.
When you account
for these factors, corn ethanol — currently the most widely produced biofuel in the United States — generates about 43 percent
less carbon dioxide than gasoline.
So more
carbon dioxide means
less carbonates
for shell building by swimming snails and other creatures.
For instance, team member Linda Sohl used the GISS 3D model to see whether Earth circa 715 million years ago, with
less carbon dioxide in the air, would be fully or partially covered in ice.
In a laboratory experiment, scientists from GEOMAR Helmholtz Centre
for Ocean Research Kiel showed that younger animals already eat
less and grow more slowly at only slightly elevated
carbon dioxide concentrations.
Because everyone in this global community will be affected by climate change, it will be
for our own benefit if we manage to reduce
carbon dioxide emissions in such a way that global warming is limited to
less than 2 degrees Celsius», says Prof. Ulf Riebesell, marine biologist at GEOMAR Helmholtz Centre
for Ocean Research Kiel and coordinator of BIOACID.
The general consensus among scientists is that the young Earth's atmosphere contained much larger quantities of greenhouse gases (such as
carbon dioxide and / or ammonia) than are present today, which trapped enough heat to compensate
for the
lesser amount of solar energy reaching the planet.
European carmakers have invested heavily in diesel engines, which produce
less carbon dioxide but more of other pollutants blamed
for causing respiratory disease than petrol engines.
Researchers at Stanford University who closely track China's power sector, coal use, and
carbon dioxide emissions have done an initial rough projection and foresee China possibly emitting somewhere between 1.9 and 2.6 billion tons
less carbon dioxide from 2008 to 2010 than it would have under «business as usual» if current bearish trends
for the global economy hold up.
With human
carbon dioxide production accounting
for less than 3 % of the earth's total natural
carbon dioxide production it is ludicrous to think any small reduction we might make would be perceptible — Remember going back to the old stone age before mankind had fire (when the climate was warmer than it is now) would result in a
less than 3 % reduction in
carbon dioxide production.
... In the U.S. electricity supply sector, the cost benchmark
for reducing
carbon dioxide emissions lies with substitution of natural gas
for coal, especially older,
less efficient units.
Salter water can hold
less carbon dioxide (6.5 ppm
less for a 3 % increase in salt content).
For decades, it has been a given that heavy rainfall on steep mountain slopes is likely to chemically weather the exposed rock and precipitate a chemical reaction that ends with carbonate minerals on the ground and with
less of the greenhouse gas
carbon dioxide in the atmosphere.
It would also mean the damages resulting from
carbon dioxide emissions would be
less for every ton of CO2 emitted (~ 20 tons of CO2 annually per capita in the US).
Decarbonizing the world's electricity supply,... would deliver a little
less than half the reduction in
carbon dioxide emissions necessary by 2035 to limit the eventual increase in global temperatures to two degrees Celsius,... The
carbon intensity of electricity has increased by 6 % since 1990, largely due to growing use of coal
for power generation in emerging economies, it said.
EPA is not even requiring reporting of greenhouse gas emissions
for sources emitting
less than 25,000 tons of
carbon dioxide annually.
Late in October, California Governor Jerry Brown threatened to sue the administration of President Donald Trump
for implementation of environmental policies focused more on real pollutants (e.g., heavy metals) and
less on contrived ones (e.g.,
carbon dioxide from fossil fuel combustion.
The bill would limit emissions
for plants that come online between 2009 and 2014, and new plants permitted after Jan. 1, 2015 would need to emit
less than 1,100 pounds of
carbon dioxide per megawatt - hour of output.
[12] In fact, using the Model
for the Assessment of Greenhouse Gas Induced Climate Change developed by researchers at the National Center
for Atmospheric Research, even if all
carbon dioxide emissions in the United States were effectively eliminated, there would be
less than two - tenths of a degree Celsius reduction in global temperatures.
As this trend has gathered pace, more than 100 of the best - known organisations in the UK, many of them charities, have joined together to support the Fit
for the Future Network, which has the simple aim of sharing expertise on ways of using
less energy and cutting
carbon dioxide use.
For example, as atmospheric concentrations of CO2 increase, every tonne of
carbon dioxide has
less of an effect on warming (the strongest absorption bands are already saturated).
HERE is a poll by the IGM of their Economic Experts Panel on a
carbon tax; the question posed was: «A tax on the
carbon content of fuels would be a
less expensive way to reduce
carbon -
dioxide emissions than would a collection of policies such as «corporate average fuel economy» requirements
for automobiles».
Indeed, the FAR widened the likely range of temperature increase
for a doubling of
carbon dioxide in the atmosphere from the previous assessment, indicating greater uncertainty, not
less, about this issue.
New and refurbished coal - fired power plants will not be eligible
for funding unless they emit
less than 550 grams of
carbon dioxide per kilowatt - hour (gCO2 / kW), which could be met either by a combined heat and power plant or one that also burns biomass.
I also found it interesting to see the
less than strident call
for abatement of
carbon dioxide emissions at the time those papers were published.
-- If the Administrator determines that domestic offset credits available
for use in demonstrating compliance in any calendar year at domestic offset prices generally equal to or
less than emission allowance prices, are likely to offset
less than 0.9 billion tons of greenhouse gas emissions (measured in tons of
carbon dioxide equivalents),
for purposes of compliance demonstration in that year the Administrator shall --
Although it is far
less abundant than
carbon dioxide and stays in the air
for only a decade or so, molecule
for molecule its warming effect (calculated over 100 years) is 25 times higher.
Recent studies have separately warned that high levels of
carbon dioxide, or CO ₂, make crops
less nutritious
for reasons that are not totally clear, and put shellfish and other key parts of the food chain at risk by making oceans more acidic.