Sentences with phrase «for effects of carbon dioxide»

Time scales of around a decade for effects of carbon dioxide suggest environmental changes taken today could be felt within the lifetime of most people.

In just 5 years it was responsible for a 2 % decrease in low clouds (the kind that reflect incoming solar radiation by day) which, in turn, equates to an increase in surface warming of 1.2 Wm - 2 from incident radiation — equivalent to some 85 % of the IPCC's estimate for the effect of all carbon dioxide increase since the Industrial Revolution.

Not exact matches

The new report «Lights Out for the Reef», written by University of Queensland coral reef biologist Selina Ward, noted that reefs were vulnerable to several different effects of climate change; including rising sea temperatures and increased carbon dioxide in the ocean, which causes acidification.

The increase in carbon dioxide that is now occurring is expected to have dramatic consequences for life on Earth as a result of the so - called greenhouse effect which will make the Earth hotter.

Methane gas is second behind carbon dioxide in contributing to the greenhouse effect and global warming; cow flatulence and excretion account for 20 percent, or 100 million tons, of the total annual global methane emissions.

On 28 May, a Japanese governmental advisory body laid out options for the mix of energy sources in 2030, along with projected effects on the economy and carbon dioxide emissions.

In a 1968 report prepared for API in New York City, SRI scientists Elmer Robinson and R.C. Robbins acknowledged some uncertainty concerning the relation between carbon emissions and rising temperatures, yet said carbon dioxide was the most likely cause of the «greenhouse effect.»

Freshwater such as lakes, though, receive various sources of carbon dioxide from decomposing organic and inorganic matter swept into them, which makes it hard for scientists to distinguish between the direct effects of rising atmospheric CO2 and these other elements.

Hwang also considered metal oxide frameworks that trap carbon dioxide molecules, but they had the unfortunate side effect of capturing the desired methane as well and they are far too expensive to make for this application.

In fact, it will take many thousands of years for the excess carbon dioxide to completely leave the atmosphere and be stored in the ocean, and the effect on temperature and sea level will last equally long.»

They argued, for example, over the effects of agriculture and deforestation in adding or subtracting carbon dioxide from the air.

SAVANNAH, GEORGIA — The glut of humanmade carbon dioxide (CO2) that is spurring global warming may have an unwelcome side effect for hay fever sufferers: It could help ragweed flourish and crowd out other plants, ecologists say.

Indeed, the reduction in the emission of precursors to polluting particles (sulphur dioxide) would diminish the concealing effects of Chinese aerosols, and would speed up warming, unless this effect were to be compensated elsewhere, for instance by significantly reducing long - life greenhouse gas emissions and «black carbon.»

Although CFCs are extremely persistent, remaining in the upper atmosphere for decades, and although they are 10,000 times more efficient than carbon dioxide at trapping heat, the process of controlling them has been under way for years, for reasons having nothing to do with the greenhouse effect.

The model also accounted for natural drivers of change, including the direct influence of increased carbon dioxide on ocean - carbon uptake and the indirect effect that a changing climate has on the physical state of the ocean and its relationship to atmospheric carbon dioxide.

Functioning as a ballast, these platelets are important for the carbon transport to the deep ocean — and thus for the ability of the oceans to take up carbon dioxide from the atmosphere and mitigate the effects of climate change.

«For all types of ecosystem the results show that high carbon dioxide levels can impede plants» ability to absorb nitrogen, and that this negative effect is partly why raised carbon dioxide has a marginal or non-existent effect on growth in many ecosystems,» says Johan Uddling.

THE rise in atmospheric carbon dioxide predicted for this century could blunt the appetite of soil microbes that consume a large chunk of atmospheric methane, adding to the greenhouse effect, claim researchers in North Carolina.

Pound for pound, the effect of methane on climate change is more than 20 times greater than carbon dioxide over a 100 - year period, according to the Environmental Protection Agency.

IPCC scientists have suspected for a decade that aerosols of smoke and other particles from burning rainforest, crop waste and fossil fuels are blocking sunlight and counteracting the warming effect of carbon dioxide emissions.

Forget everything government officials, many media outlets, and «activist scientists» have warned about the damaging effects of carbon dioxide, because in reality there's no cause for alarm, a group called the CO2 Coalition urges.

Or at least it won't for many centuries, as the long - lived nature of carbon dioxide in the atmosphere means that its effects will be felt for many human generations, absent efforts to curb emissions or use

[OOOPS; this nonlinear effect puts their «alternative concept» into the realm of Trump administration «alternative facts» — BD] Although the deep ocean could dissolve 70 to 80 % of the expected anthropogenic carbon dioxide emissions and the sediments could neutralize another 15 % it takes some 400 years for the deep ocean to exchange with the surface and thousands more for changes in sedimentary calcium carbonate to equilibrate with the atmosphere.

For his part, Mr. Monckton says there is no need to exploit such events because he and others have exposed fatal weaknesses in the mainstream view that a strong warming effect is due to rising concentrations of carbon dioxide — regardless of the peer - reviewed, Nobel Prize - winning work of the Intergovernmental Panel on Climate Change, the conclusions of various national academies of science and 100 years of growing accord on the basics.

According to Sir Nicholas, «Scientists have been refining their assessment of the probable degree of warming for a given level of carbon dioxide in the atmosphere», and «ranges from 2004 estimates are substantially above those from 2001 — science is telling us that the warming effect is greater than we had previously thought.»

It is to be noted here that there is no necessary contradiction between forecast expectations of (a) some renewed (or continuation of) slight cooling of world climate for a few decades to come, e.g., from volcanic or solar activity variations; (b) an abrupt warming due to the effect of increasing carbon dioxide, lasting some centuries until fossil fuels are exhausted and a while thereafter; and this followed in turn by (c) a glaciation lasting (like the previous ones) for many thousands of years.»

California alone has 1/6 of CA agriculture, add in a need for more agriculture with a shift to biopower and biofuels, add in the effect of increased carbon dioxide on decreasing food quality in many species, and increased temperatures in decreasing food productivity in many cases (rice).

Rate of percentage annual growth for carbon dioxide has certainly increased since the beginning of the 21st century, but this should result in a significant change in the rate of warming any more quickly than the differences between emission scenarios would, and there (according to the models) the differences aren't significant for the first thirty - some years but progressively become more pronounced from then on — given the cummulative effects of accumulated carbon dioxide.

«For example, the natural decay of organic material in forests and grasslands and the action of forest fires results in the release of about 439 gigatonnes of carbon dioxide every year, while new growth entirely counteracts this effect, absorbing 450 gigatonnes per year.»

Coral reefs are under stress for several reasons, including warming of the ocean, but especially because of ocean acidification, a direct effect of added carbon dioxide.

Awareness of the direct impacts of carbon dioxide on the oceans has been slow to build in part because research on the flood of this and other greenhouse gases focused for so long on the climatological significance, not the direct chemical and biological effects.

For example, it treates ice sheets as a boundary condition and therefore ignores the fact that over time the ice sheets respond, amplifying the effects our of anthropogenic pulse of carbon dioxide.

For the moment, lets just go into the evolution of the stratosphere under an enhanced greenhouse effect — assuming a single pulse of carbon dioxide.

There is no question, for course, that the human addition of carbon dioxide is a major climate forcing, both with respect to its warming influence but also its biogeochemical effect.

It is impossible for the greenhouse effect to be its cause because there was no concurrent increase of atmospheric carbon dioxide.

In addition to stopping the seas from rising we shall undertake to protect protect our children and future generations of unaborted from the effects of climate change by reducing emissions of carbon dioxide and other heat - trapping pollutants and by taking sensible steps to prepare for changes in climate that are no longer avoidable.

The added carbon dioxide will of course keep absorbing in the IR but it can not cause the greenhouse effect that IPCC calculates for it because the reduction of water vapor I referred to cancels it out.

These facts help explain why, in spite of the Earth's air temperature increasing to a level that the IPCC claims is unprecedented in the the past millennium or more, a recent study by Randall et al. (2013) found that the 14 % extra carbon dioxide fertilization caused by human emissions between 1982 and 2010 caused an average worldwide increase in vegetation foliage by 11 % after adjusting the data for precipitation effects.

However, no matter what numbers you may wish to insert for the Revelle effect, the flow to the oceans will continue to be proportional to the partial pressure of carbon dioxide in the atmosphere.

The radiative forcing (IPCC 2007) is about 1.6 W m − 2 for both carbon dioxide increases alone and also the total with all other effects included (0.6 — 2.4 as 95 % confidence limits), and the net energy imbalance of the planet is estimated (Trenberth et al. 2009) to be 0.9 ± 0.5 W m − 2.

For example, as atmospheric concentrations of CO2 increase, every tonne of carbon dioxide has less of an effect on warming (the strongest absorption bands are already saturated).

The evidence for this hypothesis is the well established physics of the greenhouse effect itself and the correlation of increasing global carbon dioxide concentration with rising global temperature.

Currently, carbon dioxide accounts for more than 60 percent of the enhanced greenhouse effect caused by the increase of greenhouse gases, and the level of carbon dioxide in the atmosphere is increasing by more than 10 percent every 20 years.

U.S. Department of Agriculture data tables provide evidence for the importance of the eight Midwest states for U.S. agricultural production.3 Evidence for the effect of future elevated carbon dioxide concentrations on crop yields is based on scores of greenhouse and field experiments that show a strong fertilization response for C3 plants such as soybeans and wheat and a positive but not as strong a response for C4 plants such as corn.

If it wasn't for the warming effect of carbon dioxide, the Earth would've been a frozen iceball throughout much of its history.

While the Earth seems to be managing the steady increase in atmospheric carbon dioxide relatively well so far (although the effects of this increase may not be felt for many decades to come), there are concerns that passing the 400 parts per million atmospheric carbon dioxide threshold will bring the Earth's atmosphere closer to a tipping point at which global warming accelerates rapidly with dire consequences for mankind and other creatures on Earth.

Water vapor is responsible for 80 percent of that effect, and carbon dioxide for only 10 percent, with methane, ozone, and so forth accounting for the remainder.

Perhaps you've misread Koonin's statement: For example, human additions to carbon dioxide in the atmosphere by the middle of the 21st century are expected to directly shift the atmosphere's natural greenhouse effect by only 1 % to 2 %.

I predict they will mutate the argument, and with a completely straight face — the effect of carbon dioxide will turn out to be «more complicated», scientists will rediscover that the molecule emits infra red too — and now rather than just simple warming, it will be responsible for «transforming regional patterns», «shifting layers» and «wandering jet streams».

A substantial fraction of the carbon dioxide (CO2) emitted into the atmosphere by human activity remains there, in effect, for centuries to millennia.