Sentences with phrase «fuels increases atmospheric»

For instance, if we divide the respondents into «sceptics» and «warmists» on the basis of their assent to / dissent from the statement, «I believe that burning fossil fuels increases atmospheric temperature to some measurable degree», and then compare those groups» assent to / dissent from popular conspiracy theories, we get the following result:

That's why burning fossil fuels increases atmospheric CO2, while burning crop - based biofuels does not — biofuel carbon was in the atmosphere the previous year.

Not exact matches

Black carbon aerosols — particles of carbon that rise into the atmosphere when biomass, agricultural waste, and fossil fuels are burned in an incomplete way — are important for understanding climate change, as they absorb sunlight, leading to higher atmospheric temperatures, and can also coat Arctic snow with a darker layer, reducing its reflectivity and leading to increased melting.

Certainly, the only way to stop the massive increase in atmospheric carbon dioxide is to impose a charge, either on emissions or fuel, and to allow competition to provide the cheapest alternative.

Undertaken by University of Adelaide in collaboration with CSIRO, the research could make viable a process that has enormous potential to replace fossil fuels and continue to use existing carbon - based fuel technologies without increasing atmospheric CO2.

During the early 2000s, environmental scientists studying methane emissions noticed something unexpected: the global concentrations of atmospheric methane (CH4)-- which had increased for decades, driven by methane emissions from fossil fuels and agriculture — inexplicably leveled off.

The authors said the study underlines the increasing vulnerability of calcified animals to ocean acidification, which occurs as the ocean absorbs more atmospheric carbon emitted through the burning of fossil fuels.

Because plants take up CO2 during photosynthesis, it has long been assumed that they will provide a large carbon «sink» to help offset increases in atmospheric CO2 caused by the burning of fossil fuels.

As atmospheric CO2 levels increase from burning fossil fuels, this carbon dioxide is soaked up by seawater and makes the oceans more acidic.

«The atmospheric and oceanic CO2 increase is being driven by the burning of fossil fuels,» says Pieter Tans, a senior scientist at the National Oceanic and Atmospheric Administration's Earth System Research Laboratory, who leads the U.S. government effort to monitor global greenhouse gas levels.

It concluded that atmospheric carbon dioxide concentrations had already increased by about 25 percent in the past century, and continued use of fossil fuels would lead to substantial temperature increases in the future.

Increased deposition of nitrogen from atmospheric sources because of fossil fuel combustion and forest burning.

We also know the atmospheric increase is from burning fossil fuels because of the isotopic signature of the carbon in the atmosphere.

The concentration of atmospheric CO2 has increased dramatically since the Industrial Revolution (from around 280 parts per million [ppm] in preindustrial times to 401 ppm in 2015), primarily due to human activities such as the burning of fossil fuels and changes in land - use.

Human - caused climate change has been occurring over the last 200 yr, largely because of the combustion of fossil fuels and subsequent increase of atmospheric CO2.

Empirical data for the CO2 «airborne fraction», the ratio of observed atmospheric CO2 increase divided by fossil fuel CO2 emissions, show that almost half of the emissions is being taken up by surface (terrestrial and ocean) carbon reservoirs [187], despite a substantial but poorly measured contribution of anthropogenic land use (deforestation and agriculture) to airborne CO2 [179], [216].

The rapid rate of climate change since the Industrial Revolution has resulted from changes in atmospheric chemistry, specifically increases in greenhouse gases due to increased combustion of fossil fuels, land - use change (e.g., deforestation), and fertilizer production (Forster et al. 2007).

The correlation between the two seemed so clear, so dramatic and so dangerous that scientists became convinced not only that fossil fuels were causing the rapid increase in atmospheric warmth, but that the increase was so dangerous as to destabilize the planetary weather system generally.

(a) there is increased atmospheric carbon due to industrialized economies burning fossil fuels — granted, as far as I can tell, in your statements.

As if the title weren't misleading enough, the article goes on to say that «Many scientists believe the burning of fossil fuels is causing an increase in atmospheric carbon dioxide, triggering... the greenhouse effect.»

The changes in atmospheric CO2 concentration resulting from human consumption of fossil fuels cause most of both the temperature increase and the changes in the seasonal cycle.»

Anthropogenic releases of previously sequestered carbon (prinicipally from burning fossil fuels) cause the atmospheric concentration of CO2 to increase.

One of the things pointed out in that post is that we know that the rise in atmospheric CO2 is entirely caused by fossil fuel burning and deforestation because many independent observations show that the carbon content has also increased in the ocean.

John — In concurrence with Robert's comment, the CDIAC and most other sources attribute all or almost all of the 39 % increase in atmospheric CO2 to anthropogenic activity, but only a fraction of that (the major part) is due to fossil fuel combustion.

Many lines of evidence, including simple accounting, demonstrate beyond a shadow of a doubt that the increase in atmospheric CO2 is due to human fossil fuel burning.

«Due to human activities such as the combustion of fossil fuels and deforestation, and the increased release of CO2 from the oceans due to the increase in the Earth's temperature, the concentration of atmospheric carbon dioxide has increased by about 35 % since the beginning of the age of industrialization.»

There was a growing understanding in scientific circles that the burning of fossil fuels was causing an increase in atmospheric CO2 in part thanks to the Keeling Curve, which was published in 1958.

«According to the cover story in Nature, the fires in Indonesia released upwards of 2.57 gigatonnes of carbon, 40 percent of the mean carbon emissions released annually from fossil fuels, and «contributing greatly to the largest annual increase in atmospheric carbon dioxide concentration detected since records began in 1957.

If you accept that carbon dioxide is a greenhouse gas and that human fossil fuel use is now the dominant contributor to atmospheric CO2 changes, then knowing how much global temperatures respond to increased greenhouse gases in the atmosphere is important for understanding the future climate.

In summation, the known facts (listed as points 1 to 10 above) demonstrate that there is no conclusive evidence that any of the 20th century increase in atmospheric CO2 concentration is or is not due to the burning of fossil fuels.

Richard concludes: «there is no conclusive evidence that any of the 20th century increase in atmospheric CO2 concentration is or is not due to the burning of fossil fuels.»

And that truth is that there is no conclusive evidence that any of the 20th century increase in atmospheric CO2 concentration is or is not due to the burning of fossil fuels.

I think it is safe to say that Ferdinand is convinced that the recent increase in atmospheric CO2 is definitely caused by fossil fuel combustion, while Richard and I regard this point as debatable.

«I hope this report will stress the virtual certainty among the scientific community that humans are affecting the climate system in profound ways, mainly through burning ever - increasing amounts of fossil fuels,» said Jennifer Francis, an atmospheric scientist at Rutgers University in New Jersey.

They have warned that some airfields may become too hot to permit takeoff: they have warned that more atmospheric turbulence promises bumpier flights; and that stronger headwinds could increase fuel costs.

Increasing regulations are driving the sulfur content and use of fossil fuels down (21), resulting in declining atmospheric SO2 concentration and particulate sulfate concentrations.

Consequently an increase in the atmospheric concentration of greenhouse gases from human activities such as burning fossil fuels leads to an enhanced greenhouse effect.

Exponential atmospheric CO2 growth rate will most likely not increase beyond the recent ~ 0.5 % per year, when population growth rate is expected to decrease to less than one - third of the recent past rate, even if per capita use of fossil fuels increases by 50 % by 2100.

These assume a continuation of the past exponential growth rate of atmospheric CO2 of around 0.5 % per year despite a dramatic decrease of the population growth rate to less than one - third of the past rate so, even if the world per capita fossil - fuel based energy use increases by 50 %, these are most likely «upper limits» themselves.

If we assume (as IPCC does) that human CO2 emissions are the single cause of increased atmospheric CO2 concentrations, the we could asymptotically reach an absolute highest level of atmospheric CO2 of around 1,030 ppmv WHEN ALL FOSSIL FUELS ARE 100 % USED UP.

Climate projections calculated in this paper indicate that the future atmospheric CO2 concentration will not exceed 610 ppm in this century; and that the increase in global surface temperature will be lower than 2.6 DegC compared to pre-industrial level even if there is a significant increase in the production of non-conventional fossil fuels.

, the growth of forests and land plants is capturing CO2 from the atmosphere and slowing the increase in atmospheric CO2 concentrations from deforestation and the burning of fossil fuels.

We also know the atmospheric increase is from burning fossil fuels because of the isotopic signature of the carbon in the atmosphere.

Until such time as these recent analyses are proven flawed it should be accepted that any increase in atmospheric CO2 concentrations caused by the use of fossil fuels has negligible impact upon the global climate.

In other word, all (or virtually all) of the accelerating increases in atmospheric CO2 levels in caused by human interventions, primarily by way of burning of fossil fuels and changing land usage.

He says the entire basis for the doomsday climate change scenario so beloved of politicians and scientists is the hypothesis that increased atmospheric carbon dioxide due to fossil fuel emissions will heat our planet to temperatures that would make it uninhabitable.

If we were able to continue burning the same amount of fossil fuel each year, atmospheric CO2 would not increase indefinitely, but would reach a somewhat higher equilibrium.

Additionally, atmospheric oxygen (O2) is decreasing at the same rate that CO2 is increasing, because oxygen is consumed when fossil fuels combust.

I am not discounting the human contribution to atmospheric CO2, but for you to write criticism of others knowledge of the carbon cycle, and then see you write about the increase in atmospheric CO2 - «this is ALL attributable to humans burning fossil fuel.»

The technologies currently exist to dramatically increase our fuel efficiency today to as high as 45 miles per gallon — and we must take advantage of these technologies in order to reduce atmospheric greenhouse gas concentrations to 350 parts per million and prevent climate catastrophe.