Sentences with phrase «anthropogenic emissions»

Some of the budget estimates also make an allowance for the effects of anthropogenic emissions of warming gases other than CO2, such as methane.

It has hardly been studied so far and is caused by anthropogenic emissions from the combustion of fossil fuels and biomass combined with natural emissions of plants.

These projected changes in anthropogenic emissions of trace gases from year 2000 to year 2100, making different assumptions on population development, energy use, and technology.

For anthropogenic emissions it depends critically on the mixing ratio with black carbon.

Global anthropogenic emissions of mercury presented here are based on emission inventories and include industrial emissions as well as coal combustion.

Despite national and international efforts to reduce anthropogenic emissions, growing concentrations of atmospheric carbon dioxide will yield planetary warming and associated impacts for the foreseeable future.

This is an order of magnitude smaller than the likely warming induced by anthropogenic emissions over the same time period.

They also limit our understanding of how anthropogenic emissions will affect future warming trends.

This trend has been related to the 45 % decrease in European anthropogenic emissions reported between 1990 and 1995 (42).

But the idea that it is significant enough to meaningful counteract anthropogenic emissions is not well accepted, because the evidence isn't there.

The data appears to show that deforestation is slowing whilst other anthropogenic emissions are increasing meaning that slowing deforestation will be increasingly marginal in its effect.

The fact that natural forces take out such an overwhelming amount of natural emissions places a limit on how slowly anthropogenic emissions will be removed, because nature does not discriminate between the two.

Is it really anthropogenic emissions of CO2 that are causing these problems?

The impact of anthropogenic emissions on atmospheric sulfate production pathways, oxidants, and ice core.17 O (SO4 2 --RRB-.

Almost half of total anthropogenic emissions of CO2 since 1750 have taken place since 1970.

Atmospheric scientist Tim Garrett has a few papers on this subject and a new paper on collapse which I'll mention at the end, but first let's review and get an understanding of what he said in his censored paper, «Are there basic physical constraints on future anthropogenic emissions of carbon dioxide?

The study also showed that the effect was much larger on a regional scale, counteracting possibly up to 30 % of warming in more rural, forested areas where anthropogenic emissions of aerosols were much lower in comparison to the natural aerosols.

Returning carbon to soils and ecosystems has major benefits in addition to offsetting anthropogenic emissions from fossil fuel combustion, land use conversion, soil cultivation, continuous grazing and cement manufacturing.

The strength of secondary OA sources that are enhanced by interactions of natural and anthropogenic emissions remains an open question that can not be answered by a simple parameterization.

RCP4.5 considered the influences of a broader set of anthropogenic emissions including CO2, CH4, N2O, HFCs, PFCs, and SF6, but also chemically active gases such as carbon monoxide (CO) and volatile organic compounds (VOCs).

And the Fifth Assessment Report (AR5, 2013/14) asserted that «[h] uman influence on the climate system is clear, and recent anthropogenic emissions of greenhouse gases are the highest in history.»

As assessed by the Global Footprint Network, the carbon footprint is the additional area of forest (expressed in gha) needed to sequester all net anthropogenic emissions of carbon dioxide (CO2) after subtracting the fraction of these estimated to be absorbed by oceans (currently 28 %)[21].