Sentences with phrase «of less carbon dioxide»

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.

Increases in the price of fossil fuels since 1979 have meant that less has been burned and less carbon dioxide has been added to the atmosphere.

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).

ARI's most recent emissions analysis of the ECOMAX reports 700 pounds less of carbon dioxide emissions each month compared to the old truck.

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.

Eating less meat will free up a lot of agricultural land which can revert to growing trees and other vegetation, which, in turn, will absorb more carbon dioxide from the atmosphere.

The only real climate change solutions that I have seen are to reduce carbon dioxide in the air by having human activity emit less of it.

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 goal of our work was to develop an alternative approach to making ammonia, but the insights that have come from this collaboration between our research groups can be applied to other difficult chemical processes, such as converting carbon dioxide into a less harmful and more useful product.

The simulations also suggest that the removal of excess carbon dioxide from the atmosphere by natural processes on land and in the ocean will become less efficient as the planet warms.

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.

In fact, it would take 3,600 projects of Sleipner's scale — which is the largest such project underway — to reduce current carbon dioxide emissions from coal by less than half, the report says.

Some Mars scientists have suggested quickly evaporating carbon dioxide ice could have triggered rockslides, forming gullies elsewhere on the planet, but that's a less popular theory, says team member Sanjeev Gupta of Imperial College London.

In 2005, residents of Portland, Oregon — where regulations encourage infill development — emitted 35 percent less carbon dioxide than the average resident of the country's 100 largest metropolitan areas.

«So, even well - managed present - day forests store much less carbon than their natural counterparts in 1750, which explains the [net] lack of carbon dioxide removal from the atmosphere.»

Previous ocean sediment records suggest that, as the world slipped into the last glacial period, less carbon overall reached the sediments of the Southern Ocean, coinciding with declining atmospheric carbon dioxide.

Higher concentrations of carbon dioxide in the atmosphere equals less vital nutrients in crops like rice and soybeans

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.

The researchers found that in hot years, trees in a Costa Rican rainforest grow less, and the tropics worldwide release lots of carbon dioxide (CO2).

In Maine, cooking the same turkey in the same oven but with electricity generated primarily from renewable energy releases less than three pounds of carbon dioxide.

Plug - ins use about a third of the fuel that a standard hybrid does, which means that the cars themselves emit less carbon dioxide and other pollutants.

The researchers found that ocean warming would be an overwhelming stressor that made food webs less efficient, neutralised the «fertilising» effect of elevated carbon dioxide and threw the fragile relationship between predators and prey off balance.

«However, ocean warming cancelled this benefit of elevated carbon dioxide by causing stress to the animals, making them less efficient feeders and preventing the extra energy produced by the plants from travelling through the food web to the fish.

In the longest - running experiment of its kind, the plants that were supposed to thrive in higher carbon dioxide levels have instead done less well.

At higher temperatures, less of the gas is absorbed, and the ocean releases more carbon dioxide into the air, contributing to a runaway greenhouse effect.

Although there is much less of it in the air, it is 33 times more effective than carbon dioxide at trapping heat in the atmosphere and adding to greenhouse warming.

«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.

«If ozone continues to increase, vegetation will take up less and less of our carbon dioxide emissions, which will leave more CO2 in the atmosphere, adding to global warming,» Sitch says.

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.

Earth's average temperature has remained more or less steady since 2001, despite rising levels of atmospheric carbon dioxide and other greenhouse gases — a trend that has perplexed most climate scientists.

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.

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.

That is because more than 80 percent of their industrial waste is carbon dioxide; by contrast, the figure is less than 20 percent in the power plants, said Wang Yongsheng, engineer of Shenhua's carbon capture and storage project.

We spewed so much carbon dioxide into the atmosphere and denuded so much of the planet's greenery that we succeeded in warming everything up to an even more chaotic and less predictable state.

But today their influence is far less than that of manufactured greenhouse gases such as carbon dioxide, methane and the CFCs, according to two new studies of the link between solar activity and climate.

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.

Pink salmon that begin life in freshwater with high concentrations of carbon dioxide, which causes acidification, are smaller and may be less likely to survive, according to a new study from UBC.

But the aged drink had lost much of its fizz, containing much less carbon dioxide than modern champagne, likely because it had diffused out through the cork during its centuries under the sea.

Some prior research has suggested that carbon dioxide emissions from all lakes on Earth are less than what was found in the Arctic, and future factors could shift the importance of sunlight, noted Lars Tranvik, a Swedish scientist, in an accompanying Science article.

With the ocean absorbing more carbon dioxide (CO2) over the past decade, less of the greenhouse gas is reaching the Earth's atmosphere.

On a sprawling roof that covers most of a city block a kind of park has been laid, sucking up carbon dioxide and other air pollution, filtering rainfall, making it less acidic.

«A limit to the availability of iron in this region means that the ocean is less efficient in its uptake of atmospheric carbon dioxide,» he said.

Specifically, a 4 ug / m3 increase in exposure to small particulate matter of less than 2.5 in diameter (PM2.5) was associated with a 2 % increased risk of stillbirth, while exposure to nitrogen dioxide, carbon monoxide, PM10 and ozone were also linked to a heightened risk.

Oxford University atmospheric physicist Raymond Pierrehumbert, who is among the scientists who believe cutting methane should be less of a priority than cutting carbon dioxide to tackle climate change, said the study is useful in evaluating methane capture systems at landfills.

Natural gas produces less than half the carbon dioxide of coal when burned.

Overturning textbook knowledge, the researchers discovered that the trees «exhale» less carbon dioxide during the day than previously thought, and that forest photosynthesis doesn't decline over the course of the summer.