Sentences with phrase «atmosphere of a warm planet»

Not exact matches

One possible strategy for making Mars habitable over the long term is to «terraform» it — manipulate its environment so, in the simplest terms, the planet warms up, ice turns into water, and plants can be introduced, which will convert the atmospheric carbon dioxide into oxygen, with the goal of creating a stable and breathable atmosphere.

Facts like, the measured temperature of the Earth's atmosphere is increasing, despite the fact that in the natural cycle of the Earth our planet should be cooling not warming.

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).

As one of the group's leaders, Hsu Jen - hsiu, rightly says eating less or no meat is a way to love our planet because livestock emit large volumes of methane into the atmosphere, which contribute more to global warming than the emissions produced by all the vehicles around the world.

The main cause of climate change is greenhouse gas emissions from fossil fuels (coal, oil and natural gas), which trap heat in the atmosphere and warm the planet.

It's no mystery why carbon dioxide (CO2) levels fluctuate with the seasons: As greenery grows in the spring and summer, it soaks up the planet - warming gas, and when trees shed their leaves in the autumn, some of that gas returns to the atmosphere.

The fires were costly for the rest of the planet, too: At their peak, the blazes belched more climate - warming carbon dioxide into the atmosphere each day than did all U.S. economic activity.

Helling used the model to simulate how dust whirls and swirls around in the atmospheres of brown dwarfs: gassy bodies too big and warm to be planets, but too small and cool to be stars.

An active hydrological cycle would have required a warmer climate in the planet's early history and therefore a thicker atmosphere, one capable of creating a strong greenhouse effect.

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.

But for planetary scientists, Jupiter's most distinctive mystery may be what's called the «energy crisis» of its upper atmosphere: how do temperatures average about as warm as Earth's even though the enormous planet is more than fives times further away from the sun?

The planets of the TRAPPIST - 1 system could be complex worlds with volcanoes, atmospheres and warm subsurface oceans.

The Red Planet's thin atmosphere of carbon dioxide can't retain enough heat for water to flow on the planet, but new calculations suggest how it was once Planet's thin atmosphere of carbon dioxide can't retain enough heat for water to flow on the planet, but new calculations suggest how it was once planet, but new calculations suggest how it was once warmer

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

It may seem surprising to people, but you can look at something like Mars, which has a very thin atmosphere, and you can look at something like Venus which we tend to think of as sort of having this rather heavy, clouded atmosphere, which [is] hellishly warm because of runaway greenhouse effect, and on both of those planets you are seeing this phenomenon of the atmosphere leaking away, is actually what directly has led to those very different outcomes for those planets; the specifics of what happened as the atmosphere started to go in each case [made] all the difference.

They dramatically accelerated the natural breakdown of exposed rocks, according to a new study, drawing so much planet - warming carbon dioxide (CO2) from the atmosphere that they sent Earth's climate spiraling into a major ice age.

His studies show that cosmic rays trigger cloud formation, suggesting that a high level of solar activity — which suppresses the flow of cosmic rays striking the atmosphere — could result in fewer clouds and a warmer planet.

Short - lived climate pollutants are so called because even though they warm the planet more efficiently than carbon dioxide, they only remain in the atmosphere for a period of weeks to roughly a decade whereas carbon dioxide molecules remain in the atmosphere for a century or more.

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

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.

The greenhouse effect is the process in which the emission of infrared radiation by the atmosphere warms a planet's surface.

Already, the planet's average temperature has warmed by 0.7 degree C, which is «very likely» (greater than 90 percent certain) to be a result of the rising concentrations of greenhouse gases in the atmosphere, according to the U.N. Intergovernmental Panel on Climate Change.

One of the reasons scientists have been so interested in the argon ratio in Martian meteorites is that it was — before Curiosity — the best measure of how much atmosphere Mars has lost since the planet's earlier, wetter, warmer days billions of years ago.

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.

The past 11 months have been the hottest such months in 135 years of recordkeeping, a streak that has itself set a record and puts in clear terms just how much the planet has warmed due to the buildup of greenhouse gases in the atmosphere.

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

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.

A U.N. panel of climate scientists predicts that a build - up of planet - warming greenhouse gases in the atmosphere, mainly from human use of fossil fuels, will cause ever more droughts, floods, heatwaves and rising sea levels.

February was the second hottest on record for the planet, trailing only last year's scorching February — a clear mark of how much the Earth has warmed from the accumulation of heat - trapping greenhouse gases in the atmosphere.

While the planet's surface didn't warm as fast, vast amounts of heat energy continued to accumulate in the oceans and with the switch in the PDO, some of this energy could now spill back into the atmosphere.

While a strong El Niño has given global temperatures a boost, the main reason for the spate of intensely warm months is the long - term warming of the planet caused by the accumulation of heat - trapping greenhouse gases in the atmosphere, scientists have found.

That background warming due to the accumulation of greenhouse gases in the atmosphere is the major reason for the record warm year the planet as a whole will see for 2015.

We know the planet is warming from surface temperature stations and satellites measuring the temperature of the Earth's surface and lower atmosphere.

As humans release ever - larger amounts of carbon dioxide into the atmosphere, besides warming the planet, the gas is also turning the world's oceans more acidic — at rates thought to far exceed those seen during past major extinctions of life.

From 1992 to 2003, the decadal ocean heat content changes (blue), along with the contributions from melting glaciers, ice sheets, and sea ice and small contributions from land and atmosphere warming, suggest a total warming (red) for the planet of 0.6 ± 0.2 W / m2 (95 % error bars).

In the comparatively brief time that methane is in the atmosphere, it warms the planet about 86 times as much as the same amount of CO2, according to the Intergovernmental Panel on Climate Change.

The steady rise of Earth's temperature as greenhouse gases accumulate in the atmosphere and trap more and more heat is sending the planet spiraling closer to the point where warming's catastrophic consequences may be all but assured.

Such changes are driven in large part by the greenhouse effect, the trapping of greenhouse gases in Earth's atmosphere and consequent warming of the planet.

To say it a bit worse but in modern lingo: to maintain radiative equilibrium, the planet has to put out a certain amount of heat, and if it can't radiate it out from the surface, the lower atmosphere somehow has to get warmer until there's some level that radiates the right amount.

[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium with water / ice, would precipitate out if not for the CO2, so acts as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)

However, they can provide both positive and negative forcing» and Ray # 252 «we understand extremely well the way greenhouse gasses [sic] like CO2 warm the planet» So here we go — Assumptions from considerations of physics: Unless CO2 could enlist water vapour to amplify its forcing it would simply be an unremarkable trace gas in the atmosphere, but — CO2 + water (vapour) = + ve feedback implying warming CO2 + water (liquid) = - ve feedback implying cooling Facts: Clouds cover half the surface of the planet.

«We have dumpted (today) another 70 million tons of global - warming pollution into the thin shell of atmosphere surrounding our planet, as if it were an open sewer,...»

Very clear and easy to understand but I have a question concerning the effect of an atmosphere that warms with height on a hypothetical planet.

We've been adding carbon dioxide from fossil fuels to the atmosphere at increasing rates since the dawn of the Industrial Era, and the result has been a steady warming of the planet's surface.

Are the episodes thought to be actual changes in the amount of heat being radiated by the planet (because the surface of the ocean gets warmer and cooler, does the actual infrared flux from the top of the atmosphere then change as a result)?

Hundreds of millions of cars around the planet are releasing vast amounts of carbon dioxide into the atmosphere every day, causing ocean acidification and global warming.

Heavier deluges are expected on a warmer planet; each temperature rise of 1 degree Celsius increases the amount of moisture the atmosphere can hold by about 7 percent.

Most importantly, as long as we continue to depend on dirty fossil fuels like coal and oil to meet our energy needs, and dump 70 million tons of global warming pollution into the thin shell of atmosphere surrounding our planet, we move closer and closer to several dangerous tipping points which scientists have repeatedly warned — again just yesterday — will threaten to make it impossible for us to avoid irretrievable destruction of the conditions that make human civilization possible on this planet.

1) Greenhouse gasses absorb infrared radiation in the atmosphere and re-emit much of it back toward the surface, thus warming the planet (less heat escapes; Fourier, 1824).

Unlike a belief in leprechauns, there is a preponderance of evidence that CO2 warms the planet and that the anthropogenic contribution of CO2 to the atmosphere is causing the observed warming trend.