Sentences with phrase «relatively high emissions»

In contrast, coal CCS (109g), gas CCS (78g), hydro (97g) and bioenergy (98g) have relatively high emissions, compared to a global average target for a 2C world of 15gCO2e / kWh in 2050.

But there's too much evidence of its «parts bin» nature inside, while the relatively high emissions and steep price also count against it.

Each model simulated a «control climate,» for the years 1981 to 2000, as well as a «warm climate,» for the years 2081 to 2100, assuming relatively high emissions of greenhouse gases.

Not exact matches

In fact, according to new research from Carnegie Mellon University, following the USDA recommendations to consume more fruits, vegetables, dairy and seafood is more harmful to the environment because those foods have relatively high resource uses and greenhouse gas (GHG) emissions per calorie.

«These new events are in a relatively rare class of eruptions on Io because of their size and astonishingly high thermal emission,» he said.

The highest purity searches to date have made use of relatively clean signals such as the presence of emission or absorption features at two distinct redshifts in the same optical spectrum (e.g. Bolton et al. 2004), or the strong «magnification bias» towards detecting strongly lensed sources in the sub - mm / mm waveband (e.g. Negrello et al. 2010).

«These new events are in a relatively rare class of eruptions on Io because of their size and astonishingly high thermal emission,» states Ashley Davies, a volcanologist at NASA's Jet Propulsion Laboratory.

The Boxster's purchase price, high CO2 emissions and relatively scant standard equipment mean we wouldn't recommend either the Boxster or the Boxster S as a company car.

Nonetheless, a stop - start system is standard on every model, keeping CO2 emissions down to a relatively reasonable 199g / km on the automatic 335bhp V6 - a figure that's very impressive for such a high - performance sports car.

The Japanese premium brand, which is a hybrid - only brand in the UK, is the market leader in petrol - electric luxury vehicles and has long highlighted the relatively high NOx and CO2 emissions of diesel vehicles.

Prior to now, in the 1970s similar alarmism directed against nuclear power, resulted to the relatively high level of CO2 emissions we have now.

Given the county's relatively high per - capita emissions of greenhouse gases, mostly due to transportation and heavy industries, Iceland's leaders see reforestation as an avenue toward meeting the nation's climate goals.

The results showed that ASEAN countries have relatively high allowable emissions in terms of Sulphur Oxides (SOx), Nitrogen Oxides (NOx), and Particulate Matter (PM)(see figures 1).

Cases with higher or lower world energy prices, represented by oil prices, have relatively little direct impact on power - sector emissions, as petroleum provides a small fraction of U.S. electricity generation.

The poor combustion and mixing in these simple devices result in relatively high POA: BC ratios, but SO2 emissions are low except for coal.»

Again, should the US tax German cars to account for the relatively high CO2 emissions involved in their manufacture?

Transportation measures generally contribute a higher percentage to emissions reductions than to energy use reductions due to the relatively high carbon content of most transportation fuels.

In Europe, for instance, there are almost no countries in which the rate of reproduction is high enough to sustain current population (and that includes France, whose higher rates of reproduction are among the large numbers of relatively low - carbon - emission Muslims).

In developing and emerging economies, slowing the rate of growth of using conventional transport modes with relatively high ‐ carbon emissions for passenger and freight transport by providing affordable, lowcarbon options could play an important role in achieving global mitigation targets.

However, Czech emissions per unit of GDP remain the highest in the IEA and there is substantial potential to reduce emissions at relatively low cost.

Transportation fuels are relatively inelastic, similarly requiring a high price and long - term commitment to meaningfully impact emissions.

An emissions target is countercyclical since it imposes a relatively high cost when the economy is strong, and a much smaller cost when the economy is weak.

(11/13/2011) Not known for alarmism and sometimes criticized for being too optimistic, the International Energy Agency (IEA) has warned that without bold action in the next five years the world will lock itself into high - emissions energy sources that will push climate change beyond the 2 degrees Celsius considered relatively «safe» by many scientists and officials.

A world with a relatively low climate sensitivity — say in the range of 2 C — but with high emissions and with atmospheric concentrations three to four times those of pre-industrial levels is still probably a far different planet than the one we humans have become accustomed to.

If one takes historical emissions into account, one could argue that an EU or U.S. individual exceeded a fair allocation of carbon emissions long ago, whereas Chinese individuals have not yet come close to using up their fair share (because their high emissions rates began relatively recently and because China is supporting a larger population).

Instead of including projections for extreme climate changes as a result of continued human emissions of greenhouse gases resulting from our production of energy, the high - end projections would have featured relatively modest changes and the low - end projections would have been completely unremarkable.

From 2010 to 2011, CO2 emissions from fossil fuel combustion decreased by 2.5 % due to: (1) a decrease in coal consumption, with increased natural gas consumption and a significant increase in hydropower used; (2) a decrease in transportation - related energy consumption due to higher fuel costs, improvements in fuel efficiency, and a reduction in miles travelled; and (3) relatively mild winter conditions resulting in an overall decrease in energy demand in most sectors.

This inertia is also the reason for the relatively small difference in sea - level rise by 2100 between the highest and lowest emissions scenario (the ranges even overlap)-- the major difference will only be seen in the 22nd century.

Read on.Mining from sludge a golden opportunity The sewage plant located in the town of Suwa in Nagano Prefecture has begun to process sewage for its relatively high gold content - coming from waste emissions from the precision machine, plating, and electronics facilities that are located in the region.

You aren't thinking about the warming period early last century, because we know it was a relatively brief period, and so lacked huge significance, and was caused by a combination of CO2 emissions, high solar activity and low volcanic activity and the later two factors haven't been apparent since the 1970's modern warming period.

It's only when deforestation and other land use changes made a net shift of carbon in the short term carbon cycle from plants back into the atmosphere, that humans began to make a net positive return of CO2 into the atmosphere (although deforestation is essentially reversible in principle), and it's very true to point out that industrial scale animal husbandry with its high cost in fossil - fuel - derived energy does mean that what might otherwise be a relatively closed system of cycling CO2 from the atmosphere through plants and then animals and back to the atmosphere, does become net positive with respect to CO2 emissions.

The high carbon dioxide emission factor for anthracite reflects the coal's relatively small hydrogen content, which lowers its heating value.

Because lower rank coals have relatively high carbon dioxide emission factors, increased use of these coals caused the national average carbon dioxide emission factor to rise from 206.5 pounds per million Btu in 1980 to 207.6 pounds per million Btu in 1992.

Most ethanol produced in the United States is currently derived from corn, a relatively poor feedstock given its low yield and high fertilizer requirements which have been linked to water pollution, the expanded «dead zone» in the Gulf of Mexico, and significant greenhouse gas emissions.

Energy - intensive industries common in the Nordic countries — such as iron and steel — have a relatively high share of process - related emissions, which can not be mitigated through energy efficiency or renewable energy.