Sentences with phrase «time carbon dioxide increases»

All the climate horrors occurred during a time carbon dioxide increases were not considered any influence on climate.

He showed that atmospheric absorption of long - wave radiation was constant for 61 years while at the same time carbon dioxide increased by 21.6 percent.

Not exact matches

This average meal uses up to 17 times more petroleum products, and increases carbon dioxide emissions by the same amount, compared to an entirely local meal.

«However, atmospheric carbon dioxide levels aren't changing because the Earth has had time to respond via increased silicate - weathering rates.

First, geochemical evidence shows an exponential (or even faster) increase of carbon dioxide in the oceans at the time of the so - called end - Permian extinction.

If these rates continue, emissions of methane, a greenhouse gas 25 times more powerful than carbon dioxide on 100 - year time scales, will increase 4 percent over the next decade.

Increased carbon dioxide levels seem to affect the timing of leaf coloration both through global warming and directly chemically.

Total global carbon dioxide emissions could see a boost as flight times increase in the stronger winds.

A more immediately useful metric included in the IPCC report is probably the transient climate response, which describes the response of climate systems to gradual increases in carbon dioxide and can be applied to a particular moment or period of time.

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.

For example, the model predicts that production of carbon dioxide must increase with time, a finding that goes against the conventional wisdom that carbon fluxes and atmospheric carbon dioxide levels have steadily decreased over the last 4 billion years.

For the first time, the researchers also showed that higher HTC production temperatures resulted in a significant reduction in emissions of methane (CH4) and ammonia (NH3) and an increase of carbon dioxide and carbon monoxide.

The morning after closure, the crew captain announced that carbon dioxide in Biosphere 2's atmosphere had risen to 521 parts per million, a 45 percent increase above levels outside at the time.

As it does, it could release tons of additional methane gas, which has 20 times the greenhouse effect of carbon dioxide, possibly increasing the rate of global warming.

Scientists measured how much carbon dioxide the artificially warmed plants respired — released into the air via their leaves — and learned that over time, the trees acclimated to warmer temperatures and increased their carbon emissions less than expected.

For the first time, scientists have shown a direct link between rising levels of carbon dioxide — or CO2 — in Earth's atmosphere and an increase in how much solar energy warms the ground.

Like their predecessors, Bolin and Eriksson ran the calculations regarding possible temperature changes for a doubling of carbon dioxide, but this time assuming emissions would increase and increase yet more on an ever - steepening upward path.

The real forecast is 383 ppm rising at 2 ppm / year, a minimum carbon dioxide sensitivity to doubling of 3 C, adding positive feedbacks, some of which are unknown, yields a 5 C increase in global average temperatures by 2100, and of course, time does not stop in 2100.

A dramatic decline in the ability of the Earth to soak up man - made emissions of carbon dioxide, and a corresponding acceleration in the rate of increase of greenhouse gas in the atmosphere, have been detected for the first time by scientists.

Imagine that an increase in carbon dioxide alters the cloud properties just a little — enough to either prevent that brief break in the clouds, or to create several additional breaks, one of which would be more likely to occur at the time of peak heating for the day.

At the same time, atmospheric carbon dioxide increased by 21.4 percent, just like it increased during the other two hiatuses as the Keeling curve shows.

-- Carbon dioxide is increasing in the atmosphere due to human activity; — Carbon dioxide is an excellent infrared absorber, and therefore, its increasing presence in the atmosphere contributes to global warming; and — The dwell time of carbon dioxide in the atmosphere is hundreds of years.

The increased levels of carbon dioxide in the atmosphere — now higher than at any time in at least the past few million years — can be found as fossil bubbles in the geologically short - lived «rock» that is polar ice.

The large investments by ECAs in oil and gas projects increase the world's emissions of methane, which is 87 times more potent than carbon dioxide over a 20 - year period.

During this same period of time the amount of carbon dioxide in air increased by 21.6 percent.

At the same time, carbon dioxide has been steadily increasing.

This was the first time that the monthly average exceeded the threshold of 410 parts per million, It was also the first time that there was a 30 percent increase in carbon dioxide concentration in the world.

In their model, the researchers were able to tease out the impacts of one factor at a time, which allowed them to investigate and quantify the monsoon response to the doubling of atmospheric carbon dioxide, increased temperatures and other individual changes.

The numbers are very simple — we can by increasing the organic content of agricultural soils by 1 % remove 500 million tonnes of carbon dioxide from the atmosphere — and at the same time decreases costs, increase food production and build resilience to drought and flood.

It is the only technology that acts to directly reduce the temperature of the ocean (it was estimated one degree Fahrenheit reduction every twenty years for 10,000 250 MWe plants in» 77), eliminates carbon emissions, and increases carbon dioxide absorption (cooler water absorbs more CO2) at the same time.

At the same time, those increases in carbon dioxide occurred over a much longer time frame than we are dealing with currently.

Furthermore, it is also the first time that the Keeling Curve recorded a 30 percent increase in carbon dioxide concentration on a global scale.

My other point to him at the time was that the Industrial Revolution was actually quite limited and that it wasn't until the forties last century that industry spread, but he ignored this as he ignored the email about getting rid of the MWP and LIA and when I found the Vostok data, and began to appreciate the great cycles within our Ice Age, he dismissed these too and came back to the claim that our temps had been «flat normal» and our fault that we were changing this by our increased production of carbon dioxide as the Hockey Stick showed.

Over geologic time, increases in carbon dioxide almost always caused increases in the average global temperatures.

What's so frightening to them is that after one of the regular warming periods begins, they can see (in air bubbles trapped in glaciers from those past times) that CO2 starts increasing, and they know that this is because of the warming and thawing of vast natural stores of carbon dioxide in the oceans — as well as in the frozen or frigid earth of the northern tundra.

On the matter of global climate change, APS notes that virtually all reputable scientists agree with the following observations: Carbon dioxide is increasing in the atmosphere due to human activity; Carbon dioxide is an excellent infrared absorber, and therefore, its increasing presence in the atmosphere contributes to global warming; and The dwell time of carbon dioxide in the atmosphere is hundreds of years.

Researchers said that a doubling of carbon dioxide in the Earth's atmosphere compared with pre-industrial times could result in a global temperature increase of up to 5.3 C — far warmer than the 4.6 C older models predict.

At the same time the amount of carbon dioxide in the air increased by 21.6 percent.

The time lag before increasing carbon dioxide levels for El Niños originating in the eastern tropical Pacific is about 8.5 months, the researchers say, whereas the lag for El Niños starting in the central tropical Pacific is about 5.2 months.

You write: «And, speaking of short periods of time on which to be drawing conclusions: the anthropogenic global warming hypothesis, correlating carbon dioxide increases with temperature increases, is based on only about 23 years — 1975 - 1998.

And, speaking of short periods of time on which to be drawing conclusions: the anthropogenic global warming hypothesis, correlating carbon dioxide increases with temperature increases, is based on only about 23 years — 1975 - 1998.

As expected, they found that each peak in temperature was followed by an increase in carbon dioxide, although the time lag was different depending on the El Niño origin.

If, for example, the concentration of carbon dioxide in the atmosphere increases two times (from 0.035 % to 0.07 %), which is expected by the year of 2100, then the atmospheric pressure will increase by Δp = 1.48 10 - 4 atm (Sorokhtin, 2001).

At the same time, however, longer growing seasons, along with higher temperatures and carbon dioxide levels, can increase pollen production, intensifying and lengthening the allergy season.

The rate of increase in carbon dioxide concentrations is 200 times faster than the previous extreme jump between 11,000 and 17,000 years ago, when levels rose 80 ppm over about 6,000 years.

The estimated climate changes in the Permian - Triassic Event 252 million years ago were a 2,000 parts per million increase in atmospheric carbon dioxide levels — five to ten times today's levels — and a 14 °F (8 °C) rise in temperatures.

6 Ice age — time in the past when continental glaciers covered large parts of Earth's surface Global warming — a gradual increase in the temperature of Earth's atmosphere Greenhouse gas — Gases in the atmosphere, such as carbon dioxide, that trap solar energy Ozone hole — a large area of reduced ozone concentration in the stratosphere, found over Antarctica Chlorofluorocarbon — chlorine compounds that are the main cause of ozone depletion KEY TERMS

First, a steady increase of carbon dioxide with time, beginning at 315 parts per million in 1958 and reaching 385 parts per million in 2008.

For example, the climate models use a rate of increase of the concentration of carbon dioxide which is two and a half times the current rate.

Atbthe same time, carbon dioxide increased by 21.6 percent.