Sentences with phrase «reflective aerosols»

"Reflective aerosols" refers to microscopic particles in the air that can reflect sunlight back into space, reducing the amount of solar radiation reaching the Earth's surface. Full definition
Let's imagine we force the climate to change by adding some extra energy to the system, perhaps due to an increase in greenhouse gases, or a decrease in reflective aerosols.
For aerosols, these emission uncertainties are usually dominant, although for sulfate (an important reflective aerosol) uncertainties in aerosol physics are also substantial.
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].
Also, has anyone tried to measure to what extent reflective aerosols from China are masking the global warming impact of CO2?
Indeed, the slow - down is to be expected if recent papers on increased reflective aerosols in the atmsophere are correct.
Furthermore, if we are trying to explain why the rate of warming went up in say 1975 we don't want to look at just the rate of change in forcing due to well - mixed greenhouse gases and reflective aerosols by the rate of change in net forcing.
But with the build - up to war economic output reflective aerosols would have been at a higher level — with greenhouse gases having gone stagnant for a good part of the previous decade and with methane having been hit even harder due to its short residence time.
Several climate scientists will attribute more than 100 % of the warming to CO2 — they can due this if the man - made reflective aerosols and ozone are canceling out a portion of the CO2 influence.
Perhaps it is altogether possible that the actual climate sensitivity of the Earth is greater than currently proposed as feedbacks such as increased convective cooling, as well as cloud mediated reflective aerosol cooling reduces surface temperatures in a limited response range.
Ironically, future reductions of particulate air pollution may exacerbate global warming by reducing the cooling effect of reflective aerosols.
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].
Current growth in forcings is dominated by increasing CO2, with potentially a small role for decreases in reflective aerosols (sulphates, particularly in the US and EU) and increases in absorbing aerosols (like soot, particularly from India and China and from biomass burning).
For example, large - scale field tests of certain techniques could involve interventions in geophysical systems that might put various persons at risk of harm (e.g., via precipitation change in the case of stratospheric injections of reflective aerosols).
Other anthropogenic forcings consist of black carbon (soot, formed by incomplete combustion), reflective aerosols (tiny airborne particles that reflect sunlight back to space), soil or dust, land cover changes, and forced cloud changes.
Ironically, future reductions of particulate air pollution may exacerbate global warming by reducing the cooling effect of reflective aerosols.
In the period 1910 to 1945 the reflective aerosol and indirect aerosol effects combined look to almost cancel out the forcing from GHG's.
One involves deflecting a small amount of the sun's light and heat away from the planet to lower global temperatures; this could include the use of reflective aerosols or mirrors high in the atmosphere, or may require the deliberate formation of clouds.
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