Sentences with phrase «co2 equivalent terms»

Not exact matches

At present, nations report methane emissions in terms of CO2 equivalents, using GWP100 as the conversion factor.

That year the U.S. released 7.40 billion metric tons of carbon dioxide equivalent (CO2e), a measure of the global warming potential of any greenhouse gas in terms of the amount of warming generated by CO2.

Urban areas and their aging natural gas pipes and valves are also responsible for a lot of methane emissions, which is about 35 times as potent as a greenhouse gas over the span of 100 years and makes up about 10 percent of all U.S. greenhouse gas emissions in terms of CO2 equivalents.

However, for use with integrated assessment models, energy balance models, and — most importantly — for writing of treaties and legislation — it is still generally necessary to translate all GHG's into some equivalent in terms of CO2.

In fact, as a rule, two - wheel - drive manual Tiguan Allspaces are more economical and cleaner (in CO2 terms) than the equivalent four - wheel - drive manuals, so it makes sense to consider your needs before deciding which model suits best.

By comparison: Its direct predecessor in terms of power — also equipped with a 180 PS 1.8 - litre turbo engine — consumed 7.9 litres per 100 kilometres (equivalent to 188 g / km CO2).

However, for use with integrated assessment models, energy balance models, and — most importantly — for writing of treaties and legislation — it is still generally necessary to translate all GHG's into some equivalent in terms of CO2.

To which we must add the additional anthropogenic emissions of CO2 over the next few years, which will bring us to a total CO2 equivalent of 850 ppmv (David's estimate plus Hanson's estimate of near term anthropogenic CO2 emissions.)

Numerical values of tonnes of CO2 equivalent or enough to power X homes are commonly used to «justifiy» government action, with no mention of the potential impact on averting a rise in global temperatures in quantitative terms.

As an example, figures B and C show, on their right - hand scales, concentrations of methane and CFCs in terms of «CO2 - equivalent».

Representative Concentration Pathway (RCP) 4.5 is a scenario of long - term, global emissions of greenhouse gases, short - lived species, and land - use - land - cover which stabilizes radiative forcing at 4.5 W m − 2 (approximately 650 ppm CO2 - equivalent) in the year 2100 without ever exceeding that value.

«Representative Concentration Pathway (RCP) 4.5 is a scenario of long - term, global emissions of greenhouse gases, short - lived species, and land - use - land - cover which stabilizes radiative forcing at 4.5 Watts per meter squared (W m - 2, approximately 650 ppm CO2 - equivalent) in the year 2100 without ever exceeding that value.»

(CO2e refers to the six Kyoto greenhouse gases — carbon dioxide [CO2], methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride — all expressed in terms of the equivalent amount of CO2.

Global Warming Potentials The Global Warming Potentials (GWP) used for presentation of CH4 and N2O in terms of CO2 equivalent are 21 and 310, respectively.

One Gt is one gigatonne, a billion metric tons; CO2e, carbon dioxide equivalent, expresses the impact of different greenhouse gases in terms of CO2.

An appropriate choice of the conversion to express the impact of methane in terms of CO2 - equivalents (the «global warming potential,» or GWP) is essential to achieving the Paris accords.

The New Policy Scenario trends are in line with stabilising the concentration of greenhouse gases at over 650 parts per million (ppm) of CO2 - equivalent (eq), resulting in a likely temperature rise of more than 3.5 °C in the long term.

Because natural gas may produce less CO2 equivalent per unit of energy produced, natural gas companies are pushing natural gas as at least a short - to medium - term solution to climate change

This puts emissions on a long - term trajectory consistent with stabilizing the concentration of greenhouse gases in the atmosphere at around 650 parts per million CO2 equivalent, suggesting a long - term temperature rise of over 3.5 [degrees Celsius].»

The Intergovernmental Panel on Climate Change (IPCC) estimates global anthropogenic greenhouse gas emissions for 1990 at 39.4 billion tonnes of carbon dioxide equivalent, suggesting that the Nigerian emissions may have represented approximately 0.09 % of the total in terms of CO2 and 0.76 % of the total in terms of methane, using the IPCCs 100 - year global warming potential for methane of 25.

For example, during a cooling event to a glacial period like the LGM, the long - term Earth System Sensitivity is approximately 6 °C for an equivalent forcing to a doubling (or in this case halving) of CO2.

One Australian researcher put it into context: «The radiative forcing of the CO2 we have already put in the atmosphere in the last century is... the equivalent in energy terms to almost half a billion Hiroshima bombs each year.»

Unlike other commentators, we quantified this negative trend, not just in terms of CO2 emissions but, more viscerally, as equivalent to firing up nine coal - fired power plants last year alone.

In the first study of its kind, scientists in the project used a variety of the latest global climate models to determine the reductions needed to stabilize levels of greenhouse gases, termed CO2 equivalents, at 450 parts per million.

Using methane's 20 - year GWP — a measure of the short - term climate impact of different GHGs — increases the share of oil and gas methane to over 8 % of global GHG (with emissions of 5,650 Mt CO2e), the equivalent of about 40 % of total CO2 emissions from global coal combustion in 2012.

The equivalent for CO2 requires a product term PcL of 0.0004 * 900 * (4 * 3.281) ft.atm giving a CO2 absorptivity of 0.2 absorbing 84Wm - 2 of land LWIR in 4m.

Remember that methane is at least 25 times more potent than CO2 in terms of its warming potential — if just 10 % of the methane stored in Arctic permafrost were released into the atmosphere it could lead to a further 0.7 °C warming all on its own, equivalent to all the warming the world has seen since the industrial revolution.