Sentences with phrase «atmosphere by carbon dioxide»

Not exact matches

For example, who really notices that the amount of carbon dioxide in the atmosphere has increased by 25 per cent since the middle of the nineteenth century (as a result of the burning of fossil fuels, along with destruction of rainforests)?

In any case, our past record of increased energy use has been accompanied by a seventeen-fold increase in carbon emissions, a thirteen-fold increase in sulfur dioxide emissions, and an eightfold increase in lead emissions to the atmosphere.

Some of the carbon dioxide in the atmosphere is absorbed by water in oceans and rivers.

But the largest contribution to restoring the carbon balance will be a reduction in world population since every person who lives makes a contribution to the carbon dioxide in the atmosphere by his or her use of the products of industry or by burning wood for fuel.

Bluetongue Brewery's water recovery is subjected to GWE's state - of - the - art anaerobic treatment that significantly reduces the brewery's carbon footprint by avoiding the release of carbon dioxide into the atmosphere, say Mr Bambridge and GWE CEO Jean Pierre Ombregt.

Therefore, the Amazon recycles the CO2 from its own river system, and not that fixed by the tropical forest, releasing as much carbon dioxide into the atmosphere as it absorbs.

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.

One approach that is gaining currency among environmental scientists is carbon dioxide capture and storage (CCS), a form of carbon sequestration in which CO2 is removed from the waste gas of power plants, typically by absorbing it in a liquid, and subsequently burying it deep underground, hence keeping the gas out of the atmosphere.

A new, highly permeable carbon capture membrane developed by scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) could lead to more efficient ways of separating carbon dioxide from power plant exhaust, preventing the greenhouse gas from entering the atmosphere and contributing to climate change.

To date, the global average concentration of carbon dioxide in the atmosphere has increased by nearly 27 percent between 1960 and 2015, with the expectation of a continued rise in years to come, according to the researchers.

Taken together, the research data provides a picture, from the leaf scale to the global scale, suggesting that droughts in the Amazon basin are affecting levels of carbon dioxide in the atmosphere globally, both on a short - term basis though decreasing photosynthesis and on a longer term basis, by increasing tree mortality.

«Ultimately, the warming induced by carbon dioxide over the many thousands of years it remains in the atmosphere would exceed the warming from combustion by a factor of 100,000 or more,» Caldeira said.

Walter sees the benefits of using methane as an energy source as twofold: «Not only does it prevent a potent greenhouse gas from entering the atmosphere by converting it to weaker greenhouse gases — water vapor and carbon dioxide — but using it on - site would also reduce the demand for other fossil - fuel sources.»

The carbon they produce when building their chalk plates even helps buffer the increasing acidity in the ocean caused by excess carbon dioxide in the atmosphere.

As humans emit more carbon dioxide into the atmosphere, more of the gas is absorbed by the oceans, gradually making the water more acidic.

Curiously, the decline in atmospheric oxygen over the past 800,000 years was not accompanied by any significant increase in the average amount of carbon dioxide in the atmosphere, though carbon dioxide concentrations do vary over individual ice age cycles.

Laborious research in the 1960s by the late pioneering U.S. ecologist Eugene Odum seemed to indicate that forests achieve a balance between the amount of carbon dioxide (CO2) absorbed by growing trees and plants and the amount of CO2 released back into the atmosphere by the decomposition of dead plant matter.

A new climate change modeling tool developed by scientists at Indiana University, Princeton University and the National Oceanographic and Atmospheric Administration finds that carbon dioxide removal from the atmosphere owing to greater plant growth from rising CO2 levels will be partially offset by changes in the activity of soil microbes that derive their energy from plant root growth.

Forests, after all, cool the atmosphere by drinking in carbon dioxide from the air.

Imagine a power plant that takes the excess carbon dioxide (CO2) put in the atmosphere by burning fossil fuels and converts it back into fuel.

Those trees are going to fall down and rot and turn into methane, which is much worse than carbon dioxide,» he said, noting that by turning wood chips into biofuel, his company would actually be reducing greenhouse gases from the atmosphere.

Research at the Rodale Institute found that «organic farming helps combat global warming by capturing atmospheric carbon dioxide and incorporating it into the soil, whereas conventional farming exacerbates the greenhouse effect by producing a net release of carbon into the atmosphere.»

By releasing carbon dioxide higher in the atmosphere, airplanes allow the molecule more time to trap heat, also contributing via contrails and other chemically active gases, the IPCC notes.

Variations in the thickness of the layers is determined by a combination of the amount of water seeping into the cave and the concentration of carbon dioxide in the cave's atmosphere so, when conditions are right, they can provide a measure of how the amount of precipitation above the cave varies over time.

Reducing deforestation in the tropics would significantly cut the amount of carbon dioxide emitted into the atmosphere — by as much as one - fifth — research shows.

If damaged, they would stop capturing carbon dioxide and a large amount of it could be released into the atmosphere by decomposing vegetation

Rising temperatures could extend the growing season in northern latitudes, and an increase in carbon dioxide in the atmosphere could benefit some crops by improving water efficiency.

But some of that heat gets blocked by those pesky carbon dioxide molecules building up in the atmosphere — inexorably warming our planet.

Researchers are pursuing a handful of negative emissions technologies (NETs) that would mitigate global warming by pulling carbon dioxide (CO2) out of the atmosphere.

For this reason methanol fuel cells will be used, where the combination of methanol and oxygen produces water and carbon dioxide as a waste product (note that the carbon footprint in this case is neutral in that the methanol will be produced by photosynthesis, removing CO2 from the atmosphere).

There is accordingly a clear distinction between the composition of the «summer» and the «winter» atmosphere: The former is dominated by water, the latter by carbon dioxide.

Vertical carbon fluxes involve the amount of carbon going from the ground into the atmosphere or from the atmosphere into the ecosystem and will be estimated by measuring fluxes of carbon dioxide (CO2) and methane (CH4), two important greenhouse gases.

By retaining carbon in the soil, no - till farming also reduces the amount of carbon dioxide released into the atmosphere.

Jet engine exhaust emits carbon dioxide, which drives climate change by warming the atmosphere, leading to increasing global temperatures, rising seas and extreme weather.

Today, many scientists argue that the early atmosphere was dominated by other gases, such as carbon dioxide.

The heat absorbed by water vapor and carbon dioxide is shared with all the nitrogen, oxygen and argon, because the latter molecules are always bumping into water vapor and carbon dioxide as they mix in the atmosphere.

By seeing which wavelengths are absorbed as the starlight passes through the planet's atmosphere, astronomers could determine whether the atmosphere contains water, carbon monoxide, methane, and carbon dioxide.

The U.S. EPA is considering stiffening standards for the ocean acidification caused by rising carbon dioxide levels in the atmosphere

Produced by the burning of fossil fuels in power plants and car engines, carbon dioxide continues to accumulate in the atmosphere, warming the planet.

The draft report says that a doubling of the preindustrial concentration of carbon dioxide in the atmosphere is likely to reduce global GDP by between 1 and 3 per cent by the middle of the next century.

Some are calling this new epoch the anthropocene and it is all thanks to our increasing the relatively small amount of carbon dioxide in the atmosphere by burning the vast stores of carbon trapped inside of the fossil fuels that power our modern lives.

In the past, some people have argued that the increase in carbon dioxide (CO2) in the air would be partially offset by an increase in plant growth, caused by that additional (CO2): increased CO2 concentrations in the atmosphere should work like extra fertilizer and lead to increased plant growth.

«There was also no evidence to suggest that organic material broken down by fungi reduced the leakage of carbon dioxide into the atmosphere, or the leakage of nutrients.

This simple and inexpensive new sustainable fuels technology could potentially help limit global warming by removing carbon dioxide from the atmosphere to make fuel.

By 1900, carbon dioxide levels in the atmosphere had begun to rise steadily, reaching 340 parts per million last year.

The best estimates say that if the amount of carbon dioxide in the atmosphere doubles, temperatures will rise by between 2 and 4.5 °C.

As a result — and for reasons that remain unexplained — the waters of the Southern Ocean may have begun to release carbon dioxide, enough to raise concentrations in the atmosphere by more than 100 parts per million over millennia — roughly equivalent to the rise in the last 200 years.

The cooling effect of a grand minimum is only a fraction of the warming effect caused by the increasing concentration of carbon dioxide in the atmosphere.

But in a world which does not place a cost on environmental degradation, but sees the environment as a free resource, it is not surprising that a market - led energy policy lets industry dump sulphur dioxide, carbon dioxide and other pollutants indiscriminately into the atmosphere unless prevented by legal regulation.

Destruction of tropical rain forests, however, would significantly increase the concentration of carbon dioxide — the most important greenhouse gas — in the atmosphere by 26 percent.