Spacecraft were not detecting all of the spectroscopic signatures of the gas, for example, and ground - based observers had to contend with interference from methane and
other trace gases in Earth's atmosphere.
Scenario C is a more drastic curtailment of emissions of chlorfluorocarbon (CFC) emissions by 2000 and reduction of CO2 and
other trace gas emissions to a level such that the annual growth rates are zero (ie., the sources balance the sinks) by year 2000.
The Trace Gas Orbiter can detect and analyse methane and
other trace gases even in extremely low concentrations, with an improved accuracy of three orders of magnitude over previous measurements.
Tropospheric methane in northern Finland: seasonal variations, transport patterns and correlations
with other trace gases.
Then in 1987, Congress, recognizing that «man - made pollution — the release of carbon dioxide, chlorofluorocarbons, methane and
other trace gases into the atmosphere — may be producing a long - term and substantial increase in the average temperature on Earth,» passed the Global Climate Protection Act.
Forcing estimates for the direct effect of sulphate aerosols and
other trace gases included in the DDC models are given in Chapter 6.
A concentrated global effort to reduce CH4 and
other trace gas emissions may allow the CO2 amount to be as great as 520 ppm without spelling doom for the ice sheets.
Fourth, volcanic aerosols provide surfaces for heterogeneous chemistry affecting global stratospheric ozone distributions (Chipperfi eld et al., 2003) and
perturbing other trace gases for a considerable period following an eruption.
The 1 % / yr rate of increase for future climate, although larger than actual CO2 increase observed to date, is meant to account for the radiative effects of CO2 and
other trace gases in the future and is often referred to as equivalent CO2 (see discussion in Section 9.2.1).
The initial 2016 phase of the mission would carry an orbiter designed to sniff out possible sources of methane and
other trace gases that might signal the presence of microbial life on Mars.
However, a concerted effort to reduce non-CO2 forcings by methane, tropospheric ozone,
other trace gases, and black soot might counteract the warming from a decline in reflective aerosols [54], [75].
There are enough health - damaging pollutants in the air today such that, if they (tropospheric ozone, its principal precursor methane, black soot, and
some other trace gases that contribute to the global warming) were reduced by feasible amounts, the planet's energy balance could be restored, or nearly so.
i) CO2 and
other trace gases are too small a proportion of the atmosphere to make a significant difference to overall atmospheric density even if their volumes were to be multiplied many times over.
CO2 and
other trace gases are far too small a proportion of the atmosphere to have any significant effect in comparison to the water vapour effect.
CO2 and
other trace gases are far too small a proportion of the atmosphere to have any significant effect in the face of the water cycle on Earth.
i) CO2 and
other trace gases are too small a proportion of the atmosphere to make a significant difference to overall atmospheric density or mass even if their volumes were to be multiplied many times over.
Any extra warmth generated in the atmosphere by CO2 or
any other trace gas will quickly be neutralised by the hugely greater effect of the oceans in so far as it has not already been dispersed by increased radiation to space, evaporation, convection, condensation and rainfall.
The present warming is almost entirely due to increases in man - made greenhouse gases, mainly CO2 but also methane and
other trace gases.
Instead atmospheric physics uses the fundamental equations (the radiative transfer equations) which determine absorption and emission of radiation by water vapor, CO2, methane, and
other trace gases.
However, water vapor, carbon dioxide, methane, and
other trace gases are opaque to many wavelengths of thermal infrared energy.»
For me, being engineering trained in chemistry and physics and quantitative methods and with 40 years working on the science of Climate Change (both cooling and warming), including nearly 30 as a Board Member of the NOAA Program in Climate Change and 14 with IPCC leadership roles, I seriously doubt there is enough CO2 or
any other trace gas to really matter significantly.
However, a concerted effort to reduce non-CO2 forcings by methane, tropospheric ozone,
other trace gases, and black soot might counteract the warming from a decline in reflective aerosols [54], [75].
My contention is that man made CO2 and other man made trace gases are not only a miniscule proportion of the naturally occurring CO2 and trace gases but in turn CO2 and
other trace gases have only a miniscule proportion of the heat storing capacity of the water vapour in the atmosphere AND ADDITIONALLY the atmosphere stores only a miniscule proportion of the heat stored by the oceans.
Water vapor is the most abundant greenhouse gas, followed by carbon dioxide and
other trace gases.