Sentences with phrase «like volcanic aerosols»

The IPCC AR4 report says anthropogenic aerosols are a net negative forcing (just like volcanic aerosols).

Not exact matches

Like the particles emitted during volcanic eruptions, sulfate aerosols cool the Earth by blocking a portion of the sun's rays.

The models, which factor in natural effects such as solar winds and volcanic eruptions, along with anthropogenic forcings like greenhouse gases and aerosols, match these precipitation variations accurately in trend and reasonably well in magnitude.

Since aerosols last much longer in the stratosphere than they do in the rainy troposphere, the amount of aerosol - forming substance that would need to be injected into the stratosphere annually is far less than what would be needed to give a similar cooling effect in the troposphere, though so far as the stratospheric aerosol burden goes, it would still be a bit like making the Earth a permanently volcanic planet (think of a Pinatubo or two a year, forever).

Pekka, place show me a Thermometer record which shows anything like the temperature change shown in that figures, as a result of volcanic aerosols.

In effect, these particles — whether aerosols or kitchen table salt — could act like natural aerosols that cool the planet after a volcanic eruption.

Robock found that the forcing which most closely mirrored the actual temperature observations was volcanic aerosols: «volcanic dust is the only external forcing that produces a model response significantly like the observations».

Li et al., 2017 (DOI: 10.1016 / j.quascirev.2017.01.009): «Additionally, increased El Nino - Southern Oscillation (ENSO) strength (possibly El Ni ~ no - like phases) during drying periods, increased volcanic eruptions and the resulting aerosol load during cooling periods, as well as high volumes of greenhouse gases such as CO2 and CH4 during the recent warming periods, may also play a role in partly affecting the climatic variability in NC, superimposing on the overall solar dominated long - term control.»

This increase is not instantaneous as there are many other drivers likes aerosols, sun, volcanic eruptions and also the natural variability of the climatic system.

Turner's work, in particular, which often depicts brightly colored sunsets and emphasized natural light, can be used to roughly estimate aerosol optical depth — that is, the amount of particles like dust, volcanic ash, smoke and sea salts in the atmosphere — at the time the painting was made.

They treated volcanic forcings just like all the other aerosol forcings, not a word about how they were «expected» to be low.

What does seem to be known is that aerosols fall out of the lower atmosphere (as high as they can be launched with conventional bombs) in days, and persist for less than 2 years when launched into the stratosphere by a major volcanic event like Pinatubo which was equivalent to several H bombs.

There are perhaps good reasons for this like IPCC treatment of aerosols and a subsequent volcanic eruption (but forecast failures always tell us why they were wrong, which is part of their value).