Sentences with phrase «less carbon dioxide per»

There is also the environmental question: trains produce at least four times less carbon dioxide per mile than planes, and even less when compared with short - haul flights.

In 2015 the economy was 15 percent larger than in 2005, but the country emitted 23 percent less carbon dioxide per dollar of GDP last year compared with 10 years prior.

Natural gas emits less carbon dioxide per unit of energy than coal.

Not exact matches

For comparison's sake, potatoes have a carbon cost of less than 2 kg of carbon dioxide per kilogram produced.

By the end of 2006/07 businesses and public sector organisations had implemented less than 40 per cent of carbon dioxide savings identified by the trust.

The simulations suggested that the indirect effects of increased CO2 on net primary productivity (how much carbon dioxide vegetation takes in during photosynthesis minus how much carbon dioxide the plants release during respiration) are large and variable, ranging from less than 10 per cent to more than 100 per cent of the size of direct effects.

Replacing some of the lawn with groundcover would mean spending less weekend time behind a power mower, which produces more carbon dioxide, not to mention noise, per mile than any automobile.

Because there is no combustion, fuel cells run extremely cleanly: Their emissions are just water and carbon dioxide, and they produce less than half as much CO2 per kilowatt - hour as do traditional power plants.

Despite the strong warming trend of the past 15 years, worldwide temperatures have risen less than models predict, given the build - up of carbon dioxide in the air to 25 per cent above pre-industrial levels.

These range from stabilization of atmospheric carbon dioxide at twice its pre-industrial value by the end of this century (IPCC SRES B1) to continuously increasing atmospheric carbon dioxide at the rate of a bit less than 1 % per year (IPCC SRES A2).

When run in Europe's standardized fuel economy and emissions test cycle, the Flextreme is expected to produce less than 60 grams of carbon dioxide per mile.

The company says that over the NEDC standardized European driving cycle, its plug - in diesel hybrid will emit less than 50 grams of carbon dioxide per kilometer.

Other models that might be unveiled are a new efficient diesel C - Class that will be on the market by 2011 that uses less than five liters of fuel per 100 km and only emits less than 130g of carbon - dioxide per km.

Right now we're taxing sugar - based ethanol at 54 cents per gallon while we are subsidizing corn - based ethanol at 45 cents per gallon, even though sugar - based ethanol is cheaper and producing it generates less carbon dioxide.

In the meantime, the world's poorest two or three billion people, emitting less than one ton of carbon dioxide per person per year (compared to the 20 tons per - capita average of the United States), could be propelled out of poverty with additional fossil fuel use without substantially interfering with efforts to rein in the richest populations» emissions.

On these numbers alone = ~ 0.5 parts per million of carbon dioxide less per year between now and eternity

The disturbing conclusion, documented in a paper I have written with several of the world's leading climate experts, is that the safe level of atmospheric carbon dioxide is no more than 350 ppm (parts per million) and it may be less.

It is like saying that if you drive at 55 miles an hour the carbon dioxide emissions from your car will be less than if you drive at 70 miles per hour.

In their conservative calculations, the Intergovernmental Panel on Climate Change (IPCC) estimates that approximately 25 % of deforestation emissions can be abated at a cost of less than $ 20 per metric ton of carbon dioxide (tCO2).

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).

Natural gas is much more environmentally friendly than coal, which continues to be the mainstay of electricity production around the world and in the U.K. Gas emits less than half the CO2 per kilowatt hour produced, and it emits much lower amounts of other pollutants like nitrous oxide, sulfur dioxide, black carbon, carbon monoxide, mercury, and particulates.

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.

Moreover, even when emissions from the generation of electricity (upstream emissions) were considered, electric vehicles produced 21 times less carbon dioxide equivalent emissions per year than their gasoline - powered alternatives.

Cities are major contributors to climate change: although they cover less than 2 per cent of the earth's surface, cities consume 78 per cent of the world's energy and produce more than 60 % of all carbon dioxide and significant amounts of other greenhouse gas emissions, mainly through energy generation, vehicles, industry, and biomass use.

This decision defined small - scale afforestation or reforestation project activities as those that are expected to result in net anthropogenic GHG removals by sinks of less than 8 kilotonnes of carbon dioxide per year.

We would have to develop new technologies that use energy more efficiently, emit less carbon per unit of energy, remove carbon from the atmosphere, and / or reduce the harm done by carbon dioxide.

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.

And you also knew, for example, that that an average gas driven car emitted 4.7 tons of carbon dioxide per year and an electric car would cut that in half even when powered from the current polluting grid, and much much less on a life cycle basis from a future global efficient renewable energy system displacing almost all fossil fuels.

A typical advanced coal plant today emits about 1,800 pounds of carbon dioxide per hour compared with natural gas plants that emit around 800 pounds on average — less than the proposed new standards.

This has left us with highly variable estimates of project costs, ranging from Klaus Lackner's claim that air capture could be effectuated for less than $ 100 per ton of carbon dioxide to more than $ 1000 in a 2011 study, as well as the American Physical Society's estimate of about $ 600 per ton.

That carbon dioxide level, unsurprisingly in retrospect, is less than the current 385 ppm (parts per million).

Current and envisaged carbon dioxide permit prices of less than 50 Euros per tonne will have little impact on the demand for flights - and hence will barely affect the rapid growth in aviation emissions.

«[Fifteen] per cent of the UK's carbon dioxide emissions come from cars, and a quarter of our car journeys are less than two miles long», states Brenda Boardman of Oxford's Environmental Change Institute (6).

«Public transport emits less than half as much carbon dioxide per passenger.

Greenhouse gas emissions from coal, gas and oil combustion since the dawn of the 19th century and the coming of the machine - age century have pushed carbon dioxide ratios in the atmosphere from less than 300 parts per million to 400ppm everywhere, and global average temperatures have risen by 1 °C.

The authors found that carbon emissions could be reduced by roughly one gigaton per year within five years — equivalent to 3 % of worldwide emissions — if other countries followed the U.K.'s example by switching to natural gas from coal in power stations, as natural gas produces less than one - half the carbon dioxide produced by coal.

Supercritical stations burn less coal per megawatt - hour produced and so benefit the environment and the electricity consumer.A modern, highly efficient, supercritical coal - fired station with stack gas cleanup is very clean indeed, essentially emitting only water vapor, carbon dioxide and nitrogen.

They have developed a new way of producing ammonia which reduces nitrogen oxide emissions by 87 per cent, sulphur dioxide by 95 per cent and carbon dioxide by 60 per cent — and it uses less resources.

Roberts responded: «Um... for example, carbon dioxide... ah... has been, whenever we talk about carbon dioxide on the ABC... um... you see on the news broadcast billowing steam pouring out, giving people the impression that carbon dioxide is both... um... colourful and it's also huge in volume when it's less than 0.04 per cent.»

And a survey by the US General Services Administration found that the first dozen LEED buildings in its portfolio consumed 26 per cent less energy and produced 33 per cent lower carbon dioxide emissions than comparable government - owned buildings.

According to Slate.com and a 2005 University of Chicago study, a lacto - ovo vegetarian emits far less greenhouse gas than an individual on a standard, meat - rich American diet — the difference is equivalent to around 1.5 metric tons of carbon dioxide per year, assuming the same daily caloric intake.

I am comparing an almost - all - carbon - dioxide atmosphere to a less - than - one - per - cent carbon dioxide atmosphere, and I stand by the comparison.

«I will only buy cars that emit less than 120 grams of carbon dioxide per kilometre.