Sentences with phrase «fuel emissions over»

The oil sands, even in the worst case (assuming constant production rates of coal, gas and conventional oil, with accelerated bitumen production), will only contribute a small proportion, about 3 %, to fossil - fuel emissions over this century.

(2) The observed inter hemispheric difference between the CO2 measurements at the Mauna Loa and the South Pole stations tracks beautifully the temporal increase and variation of the fossil fuel emissions over the last 55 years.

Eliminating clouds from the dimming equation now leaves little doubt that human activity, in the form of a nine-fold increase in fossil fuel emissions over the same half - century period, has entrenched China in a foggy haze that absorbs and deflects the sun's rays.

Not exact matches

While this company's bond did not directly invest in increasing fossil fuel output, refineries are still processing fossil fuels and any investment in making refineries more efficient, as this bond is aiming to, will likely extend plant operating lifetimes and therefore indirectly increase emissions over time.

Many companies have participated in a sustainability program to reduce greenhouse gas emissions by one billion tons and fuel consumption by 86 billion gallons over 10 years.

-- «Calpers rejects plea to divest from carmakers over emissions,» by Bloomberg's Kate Smith: «The nation's largest pension system has rejected a call to divest from vehicle manufacturers that follow the president's agenda to roll back fuel efficiency standards, according to an April 20 letter.

The long - term warming over the 21st century, however, is strongly influenced by the future rate of emissions, and the projections cover a wide variety of scenarios, ranging from very rapid to more modest economic growth and from more to less dependence on fossil fuels.

Only movie stars and select consumers have been able to get their hands on hydrogen fuel cell vehicles in the United States over the past few years, but now these zero - emissions cars are poised to bust onto the scene in a big way around 2015 to 2017.

This comes as automakers from around the world are struggling to make low - emissions vehicles scale up in China, the United States and other markets where programs and regulations are calling for massive gains in fuel economy over the next 10 to 15 years.

Some countries have been able to reduce their emissions steadily over a 10 - year period, often by a combination of government policies and market reaction to the availability of fossil fuels and other natural resources.

Eliminating fossil fuel subsidies would slash global carbon emission by 20 percent and raise government revenue by 2.9 trillion, well over the funds needed for intelligent policy and action on climate adaptation.»

Through their control over transport and logistics operations, companies have the power to make deep cuts in greenhouse gas emissions, but business leaders are being wary as they select from a wide array of alternative fuels and technologies.

By dramatically improving the speed and efficiency of conversion over conventional approaches, these enzymes could stimulate efforts to grow crops for fuel, with implications for biodiversity in the form of increased land use for this purpose, potential shifts away from fossil fuel use and reductions in greenhouse gas emissions.

A boom in domestic natural gas production, historically low prices, and increased scrutiny over fossil fuels» carbon emissions.

FIGURE 1: Carbon Dioxide Emissions from Fossil Fuel and the Kyoto Challenge Carbon dioxide emissions from fossil fuels have risen over time but at rates that vary by region and circuEmissions from Fossil Fuel and the Kyoto Challenge Carbon dioxide emissions from fossil fuels have risen over time but at rates that vary by region and circuemissions from fossil fuels have risen over time but at rates that vary by region and circumstances.

The U.S. saw a period of rapid economic growth and increased consumption of fossil fuels over the last few decades, leading to a corresponding large increase in carbon dioxide emissions.

«The idea of automated car - sharing vehicle or a ride - sharing service, when you increase the occupancy of a vehicle, the emissions and fuel use overall are going to be split over those individuals, hence they are going to be lower,» said Susan Shaheen, the co-director of the Transportation Sustainability Research Center at the University of California, Berkeley, whose research focuses on car - sharing.

Cornell University researchers factored in the carbon emissions over the course of natural gas's life cycle when it is extracted using hydraulic fracturing — which includes drilling the wells, erecting the construction sites, building pipelines to transport the gas, fueling the pumps that force the water underground, and transporting the wastewater — and concluded that natural gas is dirtier than coal.

As a result of this annual cycle, together with the continual emissions from fossil fuel burning (particularly over China, Europe, and the southeast United States), carbon levels reach a maximum in the Northern Hemisphere in April, just before terrestrial plants begin to soak up more carbon.

The New York Times and other outlets reported that Soon has received extensive financial support over the past decade from fossil fuel companies and others opposed to government regulation of greenhouse gas emissions — but has not always disclosed those financial links in his technical publications.

The new study suggests that some of these current uses will be affected over this century, depending on how much fossil fuel emissions increase or decrease.

The government's review of the UK energy supply published today (26 / July) highlights the dreadful performance of wind power, with over 1830 turbines with combined capacity of 2GW reducing fuel consumption in (and emissions from) UK power stations by tiny and irrelevant fraction of one per cent.

«Our study is the first example of how atmospheric measurements can help to check on fossil fuel CO2 emissions over an area large enough to encompass nations, provinces or states.»

The study, funded by NASA and published today in Environmental Research Letters, is the first time scientists have been able to measure fossil fuel CO2 emissions over a large area like California.

The jist of this is that we must NOT suddenly switch off carbon / sulphur producing industries over the planet but instead we must first dramatically reduce CO2 emissions from every conceivable source, then gradually tackle coal / fossil fuel sources to smoothly remove the soot from the air to prevent a sudden leap in average global temps which if it is indeed 2.75 C as the UNEP predicts will permanently destroy the climates ability to regulate itself and lead to catastrophic changes on the land and sea.

Warming fueled by greenhouse gas emissions continues to rewrite the record books: Over the past several weeks, heat records continued to fall at global, national, and local scales.

Eliminating global energy subsidies could reduce deaths related to fossil - fuel emissions by over 50 percent and fossil - fuel related carbon emissions by over 20 percent.

Synthetic fuels have one particular advantage over batteries or hydrogen as a route to low - carbon transport: by dropping in exactly where fossil fuels are used now, they can reduce emissions dramatically without the need for major new infrastructure or changes in consumer behaviour, which may be decisive in certain cases.

By comparison, scenarios for fossil fuel emissions for the 21st century range from about 600 billion tons (if we can keep total global emissions at current levels) to over 2500 billion tons if the world increases its reliance on combustion of coal as economic growth and population increase dramatically.

During the last century or so, over half of the CO2 emissions from fossil fuel burning, industry, and deforestation have been absorbed by natural sinks such as the forests and oceans.

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Moreover, the research indicates that fossil fuel methane emissions do not seem to be increasing over time.

Our ensemble fire weather season length metric captured important wildfire events throughout Eurasia such as the Indonesian fires of 1997 — 98 where peat fires, following an El Niño - induced drought, released carbon equivalent to 13 — 40 % of the global fossil fuel emissions from only 1.4 % of the global vegetated land area (Fig. 4, 1997 — 1998) 46 and the heatwave over Western Russia in 2010 (Fig. 4, 2010) that led to its worst fire season in recorded history and triggered extreme air pollution in Moscow51.

«Using computer modeling he developed over 20 years, Jacobson has found that carbonaceous fuel soot emissions (which lead to respiratory illness, heart disease and asthma) have resulted in 1.5 million premature deaths each year, mostly in the developing world where wood and animal dung are used for cooking.

«As global energy demand grows over this century, there is an urgent need to reduce our dependence on fossil fuels and imported oil and curtail greenhouse gas emissions,» said Secretary of Energy Steven Chu.

Those proposals, announced over the past year, aim to reduce climate change - driving carbon dioxide emissions from fossil fuel - fired power plants and set power plant CO2 emissions reductions goals for each state.

The eventual warming from 1000 GtC fossil fuel emissions likely would reach well over 2 °C, for several reasons.

My own feel for this is that if we do not achieve global agreement and real action on deep cuts in emissions over the next 10 years or so we will get locked into an inappropriate fossil fuel infrastructure until at least mid-century, that will prevent us from capturing CO2 effectively.

As well as cutting their fuel bills, LESS CO2 schools are also making significant carbon savings, with schools in Devon and Cornwall reducing their CO2 emissions by over 300 tonnes over the course of the programme.

Though zero emission buses are proven to have lower maintenance costs and better fuel economy that reduces costs over the long term, transit agencies have expressed concern over the high capital costs.

The twin - turbo V8 has been reworked with higher fuel injection pressure (350bar v 200) which has given more control over the combustion process, enabling the power uplift, and also helps the 4.4 - litre V8 meet emission requirements more easily.

Fuel - Cell Electric Vehicles can offer over 300 + miles of smooth and quiet all - electric driving, zero tailpipe emissions and a short 3 - to 5 - minute refueling time.

The final standards are expected to lower CO2 emissions by approximately 1.1 billion metric tons, save vehicle owners fuel costs of about $ 170 billion, and reduce oil consumption by up to two billion barrels over the lifetime of the vehicles sold under the program.

Even though questions of air emissions, fuel economy, and safety have seemed so overwhelming in the U.S. over the past 40 years, BMW still believes in an automobile that is beautiful, energetic, and full of life.

It means a cut of around # 3.5 k over the previous, V8 - endowed S4 which had less torque, slower accelaration and was far heavier on emissions and fuel consumption.

This paper provides an overview of recent trends in light - duty vehicle fuel economy around the world, new projections, and a discussion of fuel economy technology opportunities and costs over the next 30 - 50 years - all in the context of recent IEA projections of global energy use (especially oil use) and CO2 emissions.

It requires manufacturers to improve average fuel efficiency and reduce average greenhouse gas emissions over time.

«Over the next twenty years, this federal investment in the Sugar House Streetcar project is anticipated to save more than one million gallons of fuel and reduce carbon emissions by 26,000 tons.

All engines deliver both fuel consumption improvements and CO2 reduction benefits over their predecessors — and, since diesel cleanliness has been in the headlines a lot this year, it should be noted that all A4s, both petrol and diesel, meet stringent Euro 6 emissions regulations.

Reductions in future GHG emissions are estimated under specific assumptions about growth in light - duty vehicle travel and the replacement of gasoline by various other fuels, both in the near term (10 years) and over the longer term (25 years).