Sentences with phrase «emissions over their lifetime»

The transportation sector has eclipsed power plants as the biggest source of US carbon emissions, and EPA calculated in 2010 that the tougher fuel - efficiency standards would prevent more than one year's worth of total US carbon emissions over the lifetime of new vehicles sold from 2012 through 2025.

This large «carbon debt», and the related debt of energy, must be paid off if they are to cut emissions over their lifetime.

The program helps its donors calculate their estimated CO2 emissions and then ensures the planting of trees to trap or «sequester» those emissions over the lifetime of a forest.

His previous measures to limit carbon emissions in cars and light trucks produced between fleet years 2012 and 2025 will cut 6 billion metric tons of greenhouse gas emissions over the lifetime of those vehicles.

Passivhaus Standard buildings are radically energy efficient and ensure very low CO2 emissions over the lifetime of the building.

Back in 2009, Jacob reported on a study that claimed Kindles are greener than real books due to decreased carbon emissions over their lifetime.

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.

«Different gases have widely different lifetimes in the atmosphere after emission and affect the climate in different ways over widely different timescales,» said co-author Michael Oppenheimer, the Albert G. Milbank Professor of Geosciences and International Affairs, Woodrow Wilson School of Public and International Affairs and the Department of Geosciences at Princeton University.

«If all the coal - burning power plants that are scheduled to be built over the next 25 years are built, the lifetime carbon dioxide emissions from those power plants will equal all the emissions from coal burning in all of human history to date,» says John Holdren, a professor of environmental policy at Harvard University's Kennedy School of Government.

Power plants are expected to pump out more than 300 billion tons of carbon dioxide over their expected lifetimes, creating a 4 percent jump in emissions each year over the next few decades, according to scientists from Princeton University and University of California at Irvine.

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.

The report takes a look at the effect of the book and magazine publishing industries on both trees and carbon emissions: the U.S. book and magazine sectors accounted for the harvesting of 125 million trees in 2008, and an average book has a carbon footprint of 7.46 kilograms of CO2 over its lifetime.

These trees will eliminate an estimated half a million tons of carbon dioxide over the course of their lifetime — offsetting the equivalent emissions of 10,000 average U.S. households.

With a lifetime of ~ 10 years, spreading emissions over 30 - year period would of course reduce the peak atmospheric burden (though CH4 lifetime would presumably increase with higher CH4 concentration).

Embodied CO2 is not widely understood but this study shows that it accounts for 28 % of CO2 emissions over the first 50 years» lifetime of a new house.

Since the design lifetime of most fossil fuel plants is of order 40 years, the world would be wise to opt for another generation of fossil fuels to continue the improvement of the lot of mankind, while making a more determined effort over a longer time to develop real workarounds to the currently perceived problem of carbon dioxide emissions.

According to a calculation I performed for improvements in manure management and clean energy for cooking, one year's worth of digesters can over their lifetimes prevent 16 Mt of carbon dioxide - equivalent emissions.

In total, their portfolio generates around 32 million tonnes of CO2 (MtCO2) emission reductions per year and around 836 MtCO2 reduction over the projects lifetimes.

The most popular electric car, the Nissan Leaf, over a 90,000 - mile lifetime will emit 31 metric tons of CO2, based on emissions from its production, its electricity consumption at average U.S. fuel mix and its ultimate scrapping.

Shifting to the highly efficient bulbs sharply reduces monthly electricity bills and cuts carbon emissions, since each standard (13 watt) compact fluorescent over its lifetime reduces coal use by more than 210 pounds.

This was going to drop CO2 emissions to 82gCO2 / km — a saving of 1t of CO2 over the 200,000 km lifetime of the car.

These values were used to produce a comprehensive net present value for the standard based on the full national impact over the lifetime of units affected, including monetized full fuel cycle emissions impacts.

The plant, comissioned by local beverage company Froico SA, is expected to save around 2m tonnes of carbon dioxide emissions over its projected 25 - year lifetime and reduce the French overseas territory's dependence on oil, gas and coal, which generate the majority of its power today.

Writing in today's Medical Journal of Australia, Associate Professor Barry Walters said every couple with more than two children should be taxed to pay for enough trees to offset the carbon emissions generated over each child's lifetime.

Over the vehicle's lifetime, however, the global warming emissions benefits of driving on electricity far outweigh the emissions costs of vehicle manufacturing; most EVs «pay back» their production emissions within one or two years of driving, a period that will shorten as electricity grids get cleaner.

As the solar industry has expanded, the researchers found, greenhouse gas emissions have dropped enormously: As a function of the total energy a solar cell produces over its lifetime, carbon dioxide and carbon dioxide equivalents have dropped by between 86 and 95 percent since the late 1980s and early»90s, depending on the type of solar cell.

Changes in atmospheric composition and chemistry over the past century have affected, and those projected into the future will affect, the lifetimes of many greenhouse gases and thus alter the climate forcing of anthropogenic emissions:

By one estimate, a baby born in Britain will, over the course of their lifetime, will create 160 times more greenhouse gas emissions than a baby born in Ethiopia.

Bromine, the ozone - depleting element found in methyl bromide, is nearly 60 times more effective at destroying ozone than the chlorine found in CFCs.9 This means that even though its atmospheric lifetime is quite short (a little over a year) 31, the immediate impact of changes in methyl bromide emissions on the ozone layer is very high compared to other chemicals.

Combined, these 10 companies will reduce their emissions from operations by 799 million tonnes CO2 over the lifetime of the targets, approximately equivalent to 1.86 billion barrels of oil not burned.