Sentences with phrase «atmosphere as greenhouse gases»

Even though carbon uptake during the growing season increased in recent years, observations show annual net losses of carbon to the atmosphere — as Arctic soils thaw, a vast reservoir of carbon locked up in the permafrost can be released to the atmosphere as greenhouse gases.

In combination, these factors could be removing nearly 54 million tons of carbon from the forest each year, introduced into the atmosphere as greenhouse gases.

With climate warming, permafrost thawing has accelerated, increasing the risk that a large portion of this carbon will be released into the atmosphere as greenhouse gases.

But when the land is converted for agriculture, the plants are cut down, burned, or processed, and the stored carbon is eventually released back into the atmosphere as greenhouse gases.

Warming of arctic soils and thawing of permafrost thus can have substantial consequences for the global climate, as the large C and N stores could be released to the atmosphere as the greenhouse gases carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O).

These bacteria then have free reign to decompose the organic matter and release carbon into the atmosphere as the greenhouse gasses carbon dioxide and methane.

Those 30 million, million tonnes of accumulated excavation, ore and manufacture can be seen as the physical residue of the colossal exploitation of energy, much of it in the form of fossil fuels that is returned to the atmosphere as greenhouse gas carbon dioxide to trigger global warming and potentially catastrophic climate change.

Because the charcoal by - product, or «agrichar,» does not readily break down, it could sequester for thousands of years nearly all the carbon it contains, rather than releasing it into the atmosphere as the greenhouse gas carbon dioxide.

The deep ocean is a critical storage area for carbon, keeping it from re-entering the atmosphere as the greenhouse gas carbon dioxide.

Not exact matches

Meanwhile, a group of 20 scientists studying the Otway Project in Australia since 2008 confirmed Dec. 14 that the CO2 there was behaving as it was expected to and the practice is indeed an effective way to keep greenhouse gases out of the atmosphere for thousands and perhaps millions of years.

Many of us who follow climate change news are aware that Greenland's ice is melting away, the Antarctic is cracking, and some Pacific islands are going underwater as seas rise — all because we are pumping more greenhouse gases into the thin layer of atmosphere in which we live.

Whether it is the sprawl of deserts or the loss of tropical forests as the world's poor cut trees for firewood and clear land for agriculture, or the ineluctable warming of the planet as vehicles and factories deposit millions of tons of greenhouse gases into the atmosphere, «economic pressures lie behind them all» (Tolba 1991, p. 10).

O'Connell's job was to feed a known signal into a device designed to measure greenhouse gases in the atmosphere to see if it behaved as expected.

Rising anthropogenic, or human - caused, carbon dioxide in the atmosphere may have up to twice the impact on coastal estuaries as it does in the oceans because the human - caused CO2 lowers the ecosystem's ability to absorb natural fluctuations of the greenhouse gas, a new study suggests.

Most climate models predicted that trend would continue, as humans continued to pump greenhouse gases into the atmosphere.

Above - average warmth continues as a result of increasing concentrations of greenhouse gases in the atmosphere

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.»

In a paper released for discussion in the journal Atmospheric Chemistry and Physics, Crutzen calculated that 3 to 5 percent of the nitrogen in the fertilizers used to raise crops for biofuels could end up in the atmosphere as nitrous oxide, a potent, long - lived greenhouse gas.

Some greenhouse gases occur naturally in the atmosphere, while others result from human activities such as burning of fossil fuels such as coal.

Without greenhouse gas emissions in the atmosphere, a true ice age might have been expected as a 21,000 - year wobble in Earth's tilt relative to the sun that shifts the intensity of sunlight.

Some recent papers have argued that such meltdowns could happen by the end of this century, if not in the next few decades, as a result of the greenhouse gases piling up in the atmosphere.

Current climate change models indicate temperatures will increase as long as humans continue to emit greenhouse gases into the atmosphere, but the projections of future precipitation are far less certain.

As CO2 levels in Earth's atmosphere top 400 parts per million, options such as storing the greenhouse gas in porous sandstone rock formations found in abundance on the sea floor are of increasing interesAs CO2 levels in Earth's atmosphere top 400 parts per million, options such as storing the greenhouse gas in porous sandstone rock formations found in abundance on the sea floor are of increasing interesas storing the greenhouse gas in porous sandstone rock formations found in abundance on the sea floor are of increasing interest.

All the greenhouse gases absorb infrared, and they also release the infrared, so these act as blockades to the infrared, leaving the atmosphere and going off into space; and the Earth warms up to send off even more infrared from the surface in order to reach its state, sort of a steady state with regard to space.

As greenhouse gases have piled up in the atmosphere, climate change has shifted from being a theory about a future threat to a hazardous fact of modern life.

Experts on greenhouse - gas emissions tell me that every time my car burns a gallon of gasoline, I am putting more than 25 pounds of carbon dioxide into the atmosphere as well as a smaller amount of methane, nitrous oxide, and various other toxic gases.

Such shifts are just some of the changes already happening as a result of increasing levels of greenhouse gases in the atmosphere, otherwise known as climate change.

«As the climate gets warmer, the thawing permafrost not only enables the release of more greenhouse gases to the atmosphere, but our study shows that it also allows much more mineral - laden and nutrient - rich water to be transported to rivers, groundwater and eventually the Arctic Ocean,» explained Ryan Toohey, a researcher at the Interior Department's Alaska Climate Science Center in Anchorage and the lead author of the study.

He acknowledged that the words «climate change» can be controversial among some people, but added, «As far as greenhouse gas emissions and concentrations in the atmosphere, I don't think there's any controversAs far as greenhouse gas emissions and concentrations in the atmosphere, I don't think there's any controversas greenhouse gas emissions and concentrations in the atmosphere, I don't think there's any controversy.

This effect makes the atmosphere act somewhat like a blanket that becomes thicker when amounts of water vapor, carbon dioxide and other greenhouse gases, such as methane and nitrous oxide, increase.

As the gas rises and becomes trapped in the atmosphere, it retains heat as part of a process called the greenhouse effecAs the gas rises and becomes trapped in the atmosphere, it retains heat as part of a process called the greenhouse effecas part of a process called the greenhouse effect.

While a strong El Niño provided a boost to global temperatures last year, the main driver of the planet's temperature surge, as well as other climate trends, is the warming caused by the buildup of greenhouse gases in the atmosphere.

But as long as greenhouse gases continue to build up in the atmosphere unabated, the scales are heavily weighted toward more record heat, ever lower sea ice levels and ever higher seas.

The models also include the greenhouse gas emissions and other pollutants that result from these processes, and they incorporate all of that information within a global climate model that simulates the physical and chemical processes in the atmosphere, as well as in freshwater and ocean systems.

Since methane is a greenhouse gas 25 times as potent as carbon dioxide, such a scenario would trigger a «climate catastrophe», they say, increasing the methane content of the planet's atmosphere twelve-fold, and raising temperatures by 1.3 ˚C.

Another thing that ice core showed, as others have before, is that the great swing in temperature between glacial and interglacial periods was invariably accompanied by great swings in the amount of greenhouse gases in the atmosphere: When the greenhouse goes up, the ice sheets go down.

A surprising recent rise in atmospheric methane likely stems from wetland emissions, suggesting that much more of the potent greenhouse gas will be pumped into the atmosphere as northern wetlands continue to thaw and tropical ones to warm, according to a new international study led by a University of Guelph researcher.

He writes that economists got around the original «make or break point» by adding what he describes as negative emissions — the removal of greenhouse gases from the atmosphere during the second half of the century by things like carbon capture and storage.

As the climate warms, warmer temperatures and more open water will mean more water vapour entering the atmosphere — itself a powerful greenhouse gas.

Harvesting that landfill methane for use as a fuel also offers greenhouse gas reductions, since methane traps 23 times as much heat in the atmosphere as CO2 over a century.

From the basic physics of the atmosphere, scientists expect that as the planet heats up from ever - mounting levels of greenhouse gases, net global precipitation will increase because a warmer atmosphere holds more moisture.

Whereas the greenhouse gases already in the atmosphere will contribute to warming the planet for many decades to come, Ramanathan says, the good news about warming agents such as black carbon is that they don't linger in the atmosphere for more than a few weeks.

The researchers warn, however, that the future evolution of the AMO remains uncertain, with many factors potentially affecting how it interacts with atmospheric circulation patterns, such as Arctic sea ice loss, changes in solar radiation, volcanic eruptions and concentrations of greenhouse gases in the atmosphere.

I would also like to meet Prof. Paul Jozef Crutzen as his work on atmosphere and environmental studies is very crucial, especially when the world is getting more and more polluting due to an increase in greenhouse gas emissions.

«I agree that carbon dioxide is a greenhouse gas, that greenhouse gas concentrations in the atmosphere are increasing as a result of human activities — primarily burning coal, oil, and natural gas — and that this means the global mean temperature is likely to rise,» Ebell said in the statement released by CEI yesterday.

In this sense, the ocean has acted as a buffer to slow down the greenhouse gas accumulation in the atmosphere and, thus, global warming.

As humans pumped carbon dioxide and other greenhouse gases into the atmosphere, Costa Rican rainforests became hotter and dryer in the mid-1980s.

The continual warming of the planet's atmosphere as heat - trapping greenhouse gases accumulate is also a factor.

The bad news is that such record - breaking downpours, blizzards and sleet storms are likely to continue to get worse as atmospheric greenhouse gas concentrations continue to rise, causing global temperatures to continue to warm and making the atmosphere more and more humid.

And the researchers suggest the cyclone shift may be linked to that growth, which is connected to more heat - trapping greenhouse gases in the atmosphere as a result of human activity.